Roger Blair Welsh[1] (born c. 1941 or 1942) is an American former college football coach.
[2][3] In 1964, Welsh served as a graduate assistant for Ohio as he worked on his master's degree.
[7][8] In 1975, he was hired as the defensive coordinator for Capital under head coach Gene Slaughter.
[14] His best season came in 1987 as he led the Crusaders to their first out-right Ohio Athletic Conference (OAC) title, a 7–2–2 record, and made their first appearance in the NCAA Division III playoffs.
Welsh served as the head baseball coach for Van Wert High School in 1966.