Frederic Bayley Pratt (February 22, 1865 – May 3, 1945) was an American heir, the president of the board of trustees of Brooklyn's Pratt Institute for 44 years, from 1893 to 1937, and president of the United States Olympic Committee in 1910.

Frederic Pratt was born at his family's Clinton Hill estate in Brooklyn, New York, the son of Standard Oil magnate Charles Pratt and his second wife, Mary Helen Richardson.

They had three children: Pratt commissioned Charles A. Platt to design the family county estate, known as "Poplar Hill", in Glen Cove, on the North Shore of Long Island.

[4] Pratt commissioned a family home at 229 Clinton Avenue, Brooklyn, designed by noted New York architect Henry F. Kilburn.

[citation needed] Pratt died May 3, 1945, at his family home in Glen Cove, aged 81, of a heart ailment.