Music video by Enrique Iglesias performing Tonight (I'm Lovin' You). (C) 2011 Universal International Music B.V. 1  Music.
Some people think a baby horse is called a pony. In fact, a baby horse is called a foal. A foal is a horse that is younger than one year old. A pony can be any age! Ponies have short legs and wider bodies than full-sized horses. Ponies often have thicker manes too! People can ride ponies, just like they can ride full-sized horses.
Rating Newest Oldest. Best Answer: A baby horse is called a foal. A boy is a colt and a female is a filly. Hope this helped. :) Added on after reading previous answers: A yearling is after a year or so to 2 years. Sometimes they are still called colts or fillies (if you see racing, you'll hear 3 yr. old colt).