W. O. Trine

W.O. "Dad" Trine
Trine during his time at OAC
Biographical details
Born1869
Lebanon, Oregon, U.S.
DiedJuly 13, 1907
(age 38)
Corvallis, Oregon, U.S.
Coaching career (HC unless noted)
Track
1896, 1898–1901University of Oregon
1903–1906Oregon Agricultural
Basketball
1903–1906Oregon Agricultural

Will Orian "Dad" Trine (1869 – July 13, 1907), best known by his initials, was a professional runner and collegiate track and basketball coach and trainer who was instrumental in the development of the early athletic programs at the University of Oregon at Eugene and Oregon Agricultural College (OAC, today's Oregon State University) in Corvallis, Oregon.

A native of Oregon, Trine became a prominent competitive sprinter in California before turning to coaching when the popularity of that spectator sport began to dwindle in the 1890s. He was a coach of track, basketball, a conditioning coach for football, and director of athletics for OAC.