What is the name of person who breed chicken?

There isn't a specific job title for someone who breeds chickens. It's more about the context:

* Chicken Breeder: This is a general term used for someone who specifically focuses on breeding chickens for a variety of purposes, like:

* Show birds: Breeding chickens for competitions based on appearance and conformation.

* Egg production: Breeding chickens for laying large quantities of eggs.

* Meat production: Breeding chickens for their meat.

* Conservation: Preserving rare or endangered chicken breeds.

* Poultry Farmer: This term is used for someone who raises chickens for a variety of purposes, including breeding, but also includes other aspects like feeding, housing, and selling the chickens or their products.

* Hobbyist: Many people breed chickens as a hobby, for enjoyment and to provide fresh eggs.

So, the term you use would depend on the specific role and context.