| Joe O'Brien | |
| Birth Date: | 13 March 1955 |
| Player Years1: | 1973–1977 |
| Player Team1: | Monmouth College |
| Coach Years1: | 1981–1982 |
| Coach Team1: | Episcopal HS |
| Coach Years2: | 1982–1984 |
| Coach Team2: | Southeastern Louisiana (asst.) |
| Coach Years3: | 1984–1989 |
| Coach Team3: | Central Missouri State (asst.) |
| Coach Years4: | 1991–1996 |
| Coach Team4: | Lincoln College |
| Coach Years5: | 1996–2004 |
| Coach Team5: | Southeastern CC |
| Coach Years6: | 2004–2005 |
| Coach Team6: | Florida International (asst.) |
| Coach Years7: | 2006-2011 |
| Coach Team7: | Idaho State |
Joe O'Brien (born March 13, 1955) is an American college basketball coach and the former head men's basketball coach at Idaho State University. He has previously served as an assistant coach at Florida International University in Miami, Florida. On April 18, 2009 he received a three-year contract extension to remain as the head basketball coach at Idaho State.[1] On December 19, 2011 O'Brien stepped down as head coach at Idaho State.[2]