| Mode: | Basketball |
| Sex: | none |
| Year: | 2017–18 |
| Team: | Hawaii Rainbow Warriors |
| Conference: | Big West Conference |
| Short Conf: | Big West |
| Record: | 17–13 |
| Conf Record: | 8–8 |
| Hc Year: | 3rd |
| Asst Coach1: | Adam Jacobsen |
| Asst Coach2: | John Montgomery |
| Asst Coach3: | Marlon Stewart |
| Captain: | Gibson Johnson |
| Captain2: | Mike Thomas |
| Champion: | Rainbow Classic champions |
The 2017–18 Hawaii Rainbow Warriors basketball team represented the University of Hawaiʻi at Mānoa during the 2017–18 NCAA Division I men's basketball season. The Rainbow Warriors, led by third-year head coach Eran Ganot, played their home games at the Stan Sheriff Center in Honolulu, Hawaii, as members of the Big West Conference. They finished the season 17–13, 8–8 in Big West play to finish in sixth place. They lost in the quarterfinals of the Big West tournament to UC Irvine. They were invited to play in the CollegeInsider.com Postseason Tournament, but they declined the invitation, citing financial concerns.
The Rainbow Warriors finished the 2016–17 season 14–16, 8–8 in Big West play to finish in fifth place. As the No. 5 seed in the Big West tournament, they were defeated by Long Beach State in the quarterfinals.
| Name | Number | Pos. | Height | Weight | Year | Hometown | Reason for departure | |
|---|---|---|---|---|---|---|---|---|
| Darryl Matthews | 4 | F | 6'5" | 215 | Junior | Walk-on; transferred | ||
| Matthew Owies | 5 | G | 6'0" | 180 | Freshman | Transferred to Seattle | ||
| Brian Garrett | 20 | G | 6'4" | 180 | Junior | Walk-on; graduate transferred to Cal State Monterey Bay | ||
| Noah Allen | 32 | G/F | 6'7" | 215 | Senior | Graduated | ||
| Larry Lewis Jr. | 34 | G | 6'3" | 180 | Junior | Graduate transferred to Hawaii Pacific |
| Name | Number | Pos. | Height | Weight | Year | Hometown | Notes | |
|---|---|---|---|---|---|---|---|---|
| Brandon Thomas | 4 | G | 6'4" | 180 | Sophomore | Junior college transferred from Riverside City College | ||
| Jaaron Stallworth | 5 | G | 6'1" | 180 | Sophomore | Junior college transferred from Yuba College |
|-!colspan=9 style=| Exhibition|-!colspan=9 style=| Non-conference regular season|-!colspan=9 style=| Big West regular season|-!colspan=9 style=| Big West tournament
Source:[1]