Frank James Clair (May 12, 1917 – April 3, 2005) was an American gridiron football player, coach, and executive.
Nicknamed "the Professor" for his ability to recognize and develop talent, he served as a head coach in the Canadian Football League (CFL) with the Toronto Argonauts from 1950 to 1954 and the Ottawa Rough Riders from 1956 to 1969.
Clair ranks third all-time in CFL history with 147 regular season wins and first in postseason victories with 27.
He is also tied for the most Grey Cup championships won by a head coach with five.
He won the Annis Stukus Trophy as the CFL's coach of the year in 1966 and 1969.