Largest chicken breeds can mean different things. Some breeds are exceptionally heavy, others are unusually tall, and a few simply look enormous because of deep bodies and heavy feathering.
If you want a genuinely big backyard chicken, weight matters more than appearance alone. A mature Jersey Giant can outweigh many common laying breeds by several pounds, while a Malay stands out more for height than body mass.
This guide compares 19 large and giant chicken breeds using mature size, body type, egg traits, temperament, and backyard practicality. The weights below are useful breed-reference figures, not promises for every bird. Sex, variety, bloodline, diet, and overall condition can all affect adult size.
Largest Chicken Breeds at a Glance
| Breed | Mature Male | Mature Female | What Makes It Large | Egg Profile |
|---|---|---|---|---|
| Jersey Giant | 13–15 lb | 10–11 lb | Overall body mass | Extra-large, cream to brown |
| Brahma | About 12 lb | About 10 lb | Heavy, tall frame | Medium-large brown |
| Malines | About 9–11 lb | About 6.5–9 lb | Massive meat-type frame | Light brown |
| Cochin | About 11 lb | About 8.5 lb | Heavy body plus abundant feathering | Large brown |
| Cornish | About 10.5 lb | About 8 lb | Very broad, muscular body | Small-medium tinted |
| Orpington | About 10 lb | About 8 lb | Broad, deep dual-purpose body | Large brown |
| Plymouth Rock | About 9.5 lb | About 7.5 lb | Large farm-breed frame | Large brown |
| Langshan | About 9.5 lb | About 7.5 lb | Tall, deep-bodied frame | Large brown, sometimes dark |
| Java | About 9.5 lb | About 7.5 lb | Heavy American heritage build | Large brown |
| Malay | About 9 lb | About 7 lb | Exceptional height | Medium brown |
| Minorca | About 9 lb | About 7.5 lb | Largest Mediterranean-class frame | Very large white |
| Dorking | About 9 lb | About 7 lb | Broad, stocky table-bird build | Medium-large white/cream |
| Sussex | About 9 lb | About 7 lb | Large dual-purpose frame | Large tan-brown |
| Buckeye | About 9 lb | About 6.5 lb | Deep American meat-and-egg build | Large brown |
| New Hampshire | About 8.5 lb | About 6.5 lb | Fast-growing dual-purpose body | Large tinted-brown |
| Wyandotte | About 8.5 lb | About 6.5 lb | Wide, rounded body | Large brown |
| Australorp | About 8.5 lb | About 6.5 lb | Substantial dual-purpose frame | Medium-large light brown |
| Rhode Island Red | About 8 lb | About 6 lb | Deep, rectangular farm-breed body | Large brown |
| Delaware | About 7.5 lb | About 5.5 lb | Broad, fast-growing frame | Large-jumbo brown |
Important: this is a practical comparison of large standard breeds, not an official worldwide ranking. Breed standards and regional strains can differ, and individual birds may fall above or below these figures.
1. Jersey Giant
If your definition of “largest” is body weight, the Jersey Giant belongs at the top of the conversation. Mature males commonly reach about 13–15 pounds, while hens are around 10–11 pounds.
The breed was developed in New Jersey as a large table bird. It never replaced the turkey, partly because Jersey Giants mature slowly and need plenty of feed to reach full size. That is an important tradeoff if you are choosing them for meat.
Hens can lay roughly 150–200 extra-large eggs per year, with shell color ranging from cream to brown. Their calm temperament also makes them attractive to backyard keepers who have enough space.
Related: Jersey Giant Chicken Breed Guide
2. Brahma
Brahmas combine weight, height, and a broad feathered body. Mature males are typically around 12 pounds and hens around 10 pounds. Their feathered shanks and dense plumage make them look even larger.
Brahmas are generally calm and cold hardy. They can be useful winter layers for a heavy breed, producing brown eggs, but they mature more slowly than many common backyard chickens.
Keep their feathered feet as dry and clean as possible. Muddy conditions can make foot feathering troublesome.
Related: Brahma Chicken Breed Guide
3. Malines
The Malines, or Mechelse chicken, is a genuinely large Belgian table breed. Traditional references place adult males around 4–5 kg, roughly 9–11 pounds, with hens commonly around 3–4 kg.
Malines were developed for a broad frame and good table qualities rather than maximum egg output. They are slow enough growing that they should not be confused with modern commercial broilers.
They are uncommon in the United States, so availability may be the biggest challenge for an American backyard keeper.
4. Cochin
Cochins are famous for looking enormous. Much of that visual bulk comes from abundant feathering, but they are genuinely heavy birds too. Mature roosters are around 11 pounds and hens about 8.5 pounds.
They are usually docile and are among the breeds best known for broodiness. A Cochin hen may be more valuable to you as a broody mother than as a high-output layer.
Because of their feathered legs and heavy bodies, give them dry footing and easy access to low roosting areas.
Related: Cochin Chicken Breed Guide
5. Cornish
The heritage Cornish is a broad, muscular chicken with much more body mass than its tight feathering suggests. Mature males are around 10.5 pounds and hens around 8 pounds.
Cornish chickens are primarily meat birds. They are poor to fair layers compared with productive dual-purpose breeds, often producing fewer than 160 small-to-medium tinted eggs per year.
Do not confuse heritage Cornish with commercial Cornish Cross broilers. Cornish Crosses are hybrids bred for extremely fast meat production, not a standard heritage breed.
6. Orpington
Orpingtons are broad, deep-bodied chickens developed in England for practical meat and egg production. Traditional mature weights are around 10 pounds for males and 8 pounds for females.
The loose feathering makes them look especially substantial. Most backyard keepers know the Buff Orpington best, but other standard varieties also exist.
They are generally calm and friendly, making them one of the easier large breeds for a family flock.
Related: Buff Orpington Chicken Guide
7. Plymouth Rock
The Plymouth Rock was developed in the United States during the 19th century. The Barred variety was the original and remains the one most backyard keepers recognize.
Mature males are about 9.5 pounds and hens about 7.5 pounds. Hens commonly produce around 200 large brown eggs per year, making Plymouth Rocks one of the more practical large dual-purpose breeds on this list.
Their generally calm temperament and hardy nature also make them suitable for beginners.
Related: Barred Rock Chicken Guide
8. Langshan
Langshans combine height with a deep body. Roosters are around 9.5 pounds and hens around 7.5 pounds, but their upright carriage can make them look larger than similarly weighted breeds.
They are useful dual-purpose birds and can produce 150 or more large brown eggs per year. Some eggs may have a darker brown or plum-like bloom.
Langshans are usually calm, hardy birds and can be good choices for keepers who want a large breed without the extreme weight of a Jersey Giant.
Related: Langshan Chicken Breed Guide
9. Java
The Java is a large American heritage breed with mature males around 9.5 pounds and hens around 7.5 pounds. It is one of America’s older developed chicken breeds and helped contribute to later American poultry development.
Javas are dual-purpose birds, producing large brown eggs and a useful carcass. They mature more slowly than commercial poultry but are valued for hardiness and foraging ability.
10. Malay
The Malay earns its place here because of height rather than record-setting body weight. It is widely described as the tallest chicken breed, standing roughly 26–30 inches in some mature birds.
Standard mature weights are closer to 9 pounds for males and 7 pounds for hens. That is heavy, but well below a Jersey Giant.
Malay chickens are active, need room, and can be quarrelsome with other birds. They are not the easiest choice for a beginner or a small mixed backyard flock.
11. Minorca
The Minorca is the largest breed in the Mediterranean class. Roosters are about 9 pounds and hens around 7.5 pounds.
Despite its size, this is primarily an egg breed, not a heavy meat breed. Hens are known for very large white eggs and can produce roughly 140–220 per year depending on the strain.
Minorcas are active, strong foragers and better suited to keepers who appreciate an energetic bird rather than a cuddly pet.
Related: Minorca Chicken Breed Guide
12. Dorking
Dorkings look lower to the ground than many giant breeds, but their bodies are broad and well fleshed. Mature males are about 9 pounds and hens around 7 pounds.
The breed has a long reputation as a table bird and can also produce around 170–190 medium-to-large white or cream eggs annually.
Dorkings are generally calm and gentle. Their five-toed feet are one of the easiest traits to notice.
Related: Dorking Chicken Breed Guide
13. Sussex
Sussex chickens are large, practical dual-purpose birds. Mature roosters are around 9 pounds and hens around 7 pounds.
They are known for useful table qualities and good egg production. Depending on strain and management, hens may produce roughly 200–250 large tan-to-brown eggs in a productive year.
Sussex chickens tend to be curious and manageable, making them a sensible choice if you want size without the feed demands of the very heaviest breeds.
14. Buckeye
The Buckeye is a substantial American breed with males around 9 pounds and females around 6.5 pounds.
It was developed as a practical farm chicken for both meat and eggs. Buckeyes are active foragers but are generally gentle with people.
If you want a large cold-hardy American breed that still likes to move and forage, the Buckeye is worth considering.
Related: Buckeye Chicken Breed Guide
15. New Hampshire
New Hampshires were developed from Rhode Island Red stock with emphasis on faster growth, feathering, and maturity. Mature males are around 8.5 pounds and hens around 6.5 pounds.
Temperament varies by line. Many are docile and beginner friendly, while some strains can be more assertive. That is more accurate than labeling the entire breed aggressive.
Related: New Hampshire Chicken Guide
16. Wyandotte
Wyandottes have wide, rounded bodies and dense feathering. Mature roosters are about 8.5 pounds and hens around 6.5 pounds.
They are useful dual-purpose birds that lay large brown eggs and handle cold conditions well. The rose comb is also less exposed than a large single comb during cold weather.
Related: Wyandotte Chicken Breed Guide
17. Australorp
The Australorp is a substantial Australian dual-purpose breed developed from Orpington ancestry with strong selection for egg production. Mature males are around 8.5 pounds and hens around 6.5 pounds.
Australorps are better known for productive laying than extreme size, but they are still large standard fowl. Their combination of size, laying ability, and generally manageable temperament explains their backyard popularity.
Related: Australorp Chicken Breed Guide
18. Rhode Island Red
Heritage-type Rhode Island Reds are larger and heavier than many modern production strains. Traditional mature weights are around 8 pounds for males and 6 pounds for females.
Hens are strong brown-egg layers, often producing around 200–300 eggs depending on the strain. Production-bred lines may be smaller and less broody than old-type birds.
Related: Rhode Island Red Breed Guide
19. Delaware
The Delaware sits at the lighter end of this large-breed list. Mature males are around 7.5 pounds and hens around 5.5 pounds, although some birds may run slightly heavier.
The breed was developed for fast growth and dual-purpose usefulness. Hens can lay up to about 200 large-to-jumbo brown eggs per year.
Delawares are a much better fit here than a medium breed such as Araucana because their body shape and original purpose were strongly tied to broiler and farm production.
Related: Delaware Chicken Breed Guide
What Is the Heaviest Chicken Breed?
Among commonly standardized backyard breeds in the United States, the Jersey Giant is the clearest heavyweight. Mature males commonly reach 13–15 pounds and hens 10–11 pounds.
Brahmas and Malines are also exceptionally large, but typical mature weights are generally below the biggest Jersey Giants.
What Is the Tallest Chicken Breed?
The Malay is widely recognized for exceptional height, with mature birds sometimes standing around 26–30 inches tall. Brahmas can also be very tall, but their body type is heavier and more feathered.
Best Large Chicken Breeds for Eggs
If eggs matter as much as body size, look beyond the very heaviest breeds. Plymouth Rocks, Rhode Island Reds, Australorps, Sussex, and Minorcas usually make more practical choices than breeds selected mainly for extreme mass.
Egg numbers vary with strain, age, daylight, nutrition, health, climate, and management. Treat annual figures as useful ranges, not guarantees.
Best Giant Chickens for Meat
Jersey Giants, Cornish, Malines, Brahmas, Dorkings, and Sussex all have histories tied to table use. However, heritage breeds generally grow much more slowly than modern commercial broilers.
If your goal is efficient meat production rather than heritage poultry, remember that a heavier adult breed does not automatically mean better feed efficiency.
Related: Best Meat Chicken Breeds
Best Large Chicken Breeds for Beginners
For a first flock, Plymouth Rocks, Orpingtons, Sussex, Australorps, Brahmas, and Jersey Giants are generally easier choices than Malays or other more intense, active breeds.
Temperament still varies by individual bird, breeder line, handling, sex, and flock conditions. A calm breed can still produce an assertive rooster.
How Much Space Do Large Chickens Need?
Large chickens need more usable room than bantams and small laying breeds, but there is no universal rule that they need exactly “double” the space.
Penn State Extension lists a minimum of about 2 square feet of indoor space and 10 square feet of outside run per large chicken. Other Extension recommendations are more generous, especially when birds spend long periods confined. More room is usually better for giant breeds.
Pay special attention to floor area around feeders and waterers. A 12-pound Brahma takes up much more physical room than a light Mediterranean hen even when both technically fit inside the same square-foot calculation.
Roosts and Nest Boxes for Heavy Chickens
Heavy breeds can injure their feet or legs when repeatedly jumping from high roosts. Use sturdy, wide roosting surfaces placed lower than you might use for lighter chickens. For very heavy or meat-type birds, a low platform can be easier to use than a narrow elevated perch.
Nest boxes should also be large enough for the hen to turn around and settle comfortably. A standard 12-by-12-inch box may work for many large hens, but giant birds may need something roomier.
Feeding Large Chicken Breeds
Use a complete poultry ration appropriate for the bird’s age and production stage. Do not try to make a chicken “giant” by overfeeding treats, scratch grain, or high-calorie extras.
Heavy chickens already place more load on their legs and feet. Excess body fat can make mobility, breeding, and laying more difficult. Keep treats limited and provide fresh water at all times.
Pros and Cons of Raising Giant Chickens
Advantages
- Impressive appearance and substantial body size.
- Several large breeds make useful dual-purpose birds.
- Many popular heavy breeds have calm or manageable temperaments.
- Large heritage breeds can be valuable for breed preservation and exhibition.
Tradeoffs
- They generally eat more feed than lighter chickens.
- Many mature slowly.
- They need more usable coop and run space.
- Roosts, ramps, and nest boxes may need to be adjusted for heavy bodies.
- Very heavy birds can be more vulnerable to leg and foot injuries from high jumps.
Largest Chicken Breeds FAQs
What is the largest chicken breed in the world?
For overall mature body weight, the Jersey Giant is one of the strongest answers among recognized standard backyard breeds. Mature males commonly reach about 13 to 15 pounds, with hens around 10 to 11 pounds.
What is the tallest chicken breed?
The Malay is widely recognized for exceptional height. Mature birds can stand roughly 26 to 30 inches tall, although they are lighter than Jersey Giants by body weight.
Are Brahma chickens bigger than Jersey Giants?
Brahmas can look extremely large because of their height and heavy feathering, but typical Jersey Giants are heavier overall. Mature Brahma males are commonly around 12 pounds, while Jersey Giant males may reach 13 to 15 pounds.
Do giant chickens lay giant eggs?
Not always. Body size and egg size are related only loosely. Jersey Giants can lay extra-large eggs, while some other big breeds lay medium or large eggs. Breed purpose and selection matter more than body size alone.
Do large chickens need more coop space?
Yes. Large chickens need enough room to move comfortably, and giant breeds benefit from more space around feeders, waterers, roosts, and nests. There is no universal rule that they need exactly twice as much room as a normal chicken.
Which large chicken breed is best for beginners?
Plymouth Rocks, Orpingtons, Sussex, Australorps, Brahmas, and Jersey Giants are generally easier large breeds for beginners than highly active or quarrelsome breeds such as Malays.
Are large chicken breeds good for meat?
Several are, including Jersey Giant, Cornish, Malines, Brahma, Dorking, and Sussex. However, most heritage breeds grow much more slowly and convert feed less efficiently than modern commercial broilers.
Final Thoughts
If you want the biggest chicken by mature body weight, start with the Jersey Giant. If height is what catches your eye, the Malay is the more unusual choice. Brahmas, Cochins, and Orpingtons offer the classic oversized backyard look, while Plymouth Rocks, Sussex, and Australorps balance substantial size with practical egg production.
Before adding giant chickens to your flock, plan around their adult bodies rather than chick size. Give them enough floor space, sturdy low roosts, comfortable nests, and a complete diet. Those simple adjustments matter more than chasing record-breaking size.
Sources
- The Livestock Conservancy: Jersey Giant Chicken
- The Livestock Conservancy: Brahma Chicken
- The Livestock Conservancy: Cochin Chicken
- The Livestock Conservancy: Cornish Chicken
- The Livestock Conservancy: Malay Chicken
- The Livestock Conservancy: Plymouth Rock Chicken
- The Livestock Conservancy: Langshan Chicken
- The Livestock Conservancy: Java Chicken
- The Livestock Conservancy: Minorca Chicken
- The Livestock Conservancy: Dorking Chicken
- The Livestock Conservancy: Sussex Chicken
- Penn State Extension: Small Scale Poultry Housing
Nice article. Picture of Delaware is wrong, should be a white bird not blue.
Thanks for your comment, The image has been changed.