| Year: | 1988–89 |
| Team: | Iowa Hawkeyes |
| Sport: | Basketball |
| Conference: | Big Ten Conference |
| Short Conf: | Big Ten |
| Coachrank: | 15 |
| Aprank: | 14 |
| Record: | 23–10 |
| Conf Record: | 10–8 |
| Hc Year: | 3rd |
| Ac1 Year: | 3rd |
| Ac2 Year: | 3rd |
| Asst Coach3: | Rudy Washington |
| Stadium: | Carver-Hawkeye Arena (Capacity: 15,500) |
| Champion: | Amana-Hawkeye Classic Champions |
| Tourney Result: | Round of 32 |
The 1988–89 Iowa Hawkeyes men's basketball team represented the University of Iowa as members of the Big Ten Conference during the 1988–89 NCAA Division I men's basketball season. The team was led by third-year head coach Tom Davis and played their home games at Carver-Hawkeye Arena. They finished the season 23–10 overall and 10–8 in Big Ten play to finish in fourth place. The Hawkeyes received an at-large bid to the NCAA tournament as #4 seed in the East Region. After defeating Rutgers in the first round, they lost to #5 seed NC State in double overtime in the Round of 32.
|-!colspan=8| Non-conference regular season|-
|-!colspan=8| Big Ten Regular Season|-
|-!colspan=8| NCAA tournament
See main article: 1988–89 NCAA Division I men's basketball rankings. ^Coaches did not release a Week 1 poll.
See also: 1989 NBA draft.
| 1 | 18 | Chicago Bulls | ||
| 1 | 23 | Atlanta Hawks | ||
| 2 | 39 | Washington Bullets |