Timm Lane Rosenbach (born October 27, 1966) is an American college football coach and former professional gridiron football player. Rosenbach was the head football coach at Adams State University in Alamosa, Colorado, taking the position at the Division II school in December 2014 and remaining there until he resigned in December 2017 to become the offensive coordinator at Montana. He played from 1989 until 1995 in the National Football League (NFL) and the Canadian Football League (CFL). Rosenbach attended Washington State University and was selected in the first round of the 1989 NFL supplemental draft.