In the world, ถ้อย (Thoi 
, ถ้อย) is quite a rare dominantly boy's, but seldom girly first name. The first name ถ้อย is characteristic of Vietnam, where it is a rare principally boy's, but very infrequently feminine name, Saudi Arabia, where it is a very rare boy's name, and the United States, where it is a very rare gender-neutral name. In absolute terms, it most frequently occurs in Vietnam, the United States, and India. Likewise, ถ้อย is the last name as well as the forename.