Family name Groats (Groats 
) , all over the world, is a very rare last name. The last name Groats is habitual in South Africa, where it is a very rare surname, the United Kingdom, where it is an extremely rare surname, and Canada. In absolute terms, it is the most numerous in South Africa, the United States, and the United Kingdom. Much less frequently, Groats is the forename as well as the last name.