Carroll Barse Haff (February 19, 1892 – April 9, 1947) was an American track and field athlete who competed in the 1912 Summer Olympics.
He was born in Kansas City, Missouri and died in Pelham Manor, New York.
In 1912 he finished fifth in the 400 metres competition.
Haff also competed in the exhibition baseball tournament at the 1912 Olympics.