James Watson St. Clair (January 20, 1885 – May 4, 1945) was an American football, basketball, and baseball coach.

He served as head football coach at North Texas State Normal College, now the University of North Texas, from 1915 to 1919, compiling a 20–11–2 record.

St. Clair died of a heart attack on May 4, 1945, at this home in Dallas.

[1] # denotes interim head coach # denotes interim head coach

This biographical article relating to a college football coach first appointed in the 1910s is a stub.