Peter J. (P. J.) Carlesimo (born May 30, 1949 in Scranton, Pennsylvania) is a former NBA and college basketball coach, and current television broadcaster. He is the son of Peter A. Carlesimo who was the longtime coach and athletic director at the University of Scranton, Wagner College, and Fordham University. Carlesimo was recently hired to cover NBA games for The NBA on TNT.

Carlesimo is a 1971 graduate of Fordham University and began his coaching career as an assistant at the school during the same year. He received his first head coaching job when he took over New Hampshire College for one year, beginning in 1975. The New Hampshire Penmen ended the 1975–1976 season with a 14-13 record and won the Mayflower Conference championship. Carlesimo also had a successful coaching stint at Wagner College of Staten Island, New York, a Division I school, leading the team to two NIT berths in six years as coach from 1976 to 1982.

Carlesimo coached Seton Hall University from 1982–1994, and was named the school's "Coach of the Century." He led the Pirates, a once struggling program, to the 1989 NCAA Championship game before losing to the Michigan Wolverines in overtime. Carlesimo was two-time Big East Conference coach of the year, following both the 1988 season, when he led Seton Hall to its first ever tournament appearance, and his 1989 runner-up year. During Carlesimo's tenure, the Pirates made the NCAA tournament six times.