This article concerns 'Breeder', an occupation in agriculture, animal husbandry, or animal fancy. For other meanings, see Breeder (disambiguation).

A breeder is a person who practices the vocation of mating carefully selected specimens of the same breed to reproduce specific, consistently replicable qualities and characteristics.

This might be as a farmer, agriculturalist, or hobbyist, and can be practiced on a large or small scale, for food, fun, or profit.

See also:

• Animal husbandry
• Animal fancy
• Breeding
• Cat breeding
• Dog breeding
• Horse breeding
• Plant or crop breeding
• Selective breeding