Jim Colletto is a former American football player and coach. He served as the head football coach at California State University, Fullerton from 1975 to 1979 and at Purdue University from 1991 to 1996, compiling a career college football record of 38–80–4. Colletto was the offensive coordinator for the Detroit Lions of the National Football League, replacing Mike Martz, who was fired on January 2, 2008. He was hired as the Lions' offensive line coach on January 29, 2007 after spending a year as the UCLA offensive line coach under Karl Dorrell. Prior to that he was offensive line coach for the Baltimore Ravens from 1999 thought 2005. Colletto was previously the offensive coordinator at the University of Notre Dame for the 1997 and 1998 seasons and was the head coach at Purdue University from 1991 to 1996. During his six seasons at Purdue, Colletto's teams compiled a 21–42–3 record.
Colletto was a member of the 2000 Baltimore Ravens Super Bowl XXXV championship team.