| Mode: | Basketball |
| Year: | 2017–18 |
| Team: | UC Santa Barbara Gauchos |
| Conference: | Big West Conference |
| Short Conf: | Big West |
| Record: | 23–9 |
| Conf Record: | 11–5 |
| Hc Year: | 1st |
| Asst Coach2: | Louis Reynaud |
| Asst Coach3: | Ben Tucker |
| Champion: | Legends Classic Subregional champion |
The 2017–18 UC Santa Barbara Gauchos men's basketball team represented the University of California, Santa Barbara during the 2017–18 NCAA Division I men's basketball season. The Gauchos, led by first-year head coach Joe Pasternack, played their home games at the UC Santa Barbara Events Center, better known as The Thunderdome, in Santa Barbara, California, as members of the Big West Conference. They finished the season 23–9, 11–5 in Big West play to finish in a tie for second place. As the No. 2 seed in the Big West tournament, they defeated Cal Poly before losing to UC Irvine in the semifinals. Despite winning 23 games, they did not participate in a postseason tournament.
The Gauchos finished the 2016–17 season 6–22, 4–12 in Big West play to finish in last place. As a result, they failed to quality for the Big West tournament.
| Name | Number | Pos. | Height | Weight | Year | Hometown | Reason for departure | |
|---|---|---|---|---|---|---|---|---|
| Eric Childress | 1 | G | 6'0" | 190 | Senior | Graduated | ||
| Tide Osifeso | 11 | G | 5'10" | 155 | Sophomore | Walk-on; left the team for personal reasons | ||
| Scotty Harris | 34 | G | 6'5" | 190 | Freshman | Walk-on; left the team for personal reasons | ||
| Tyler Jackson | 35 | C | 7'2" | 284 | RS Freshman | Transferred to San Francisco State |
| Name | Number | Pos. | Height | Weight | Year | Hometown | Previous school | |
|---|---|---|---|---|---|---|---|---|
| Leland King II | 1 | F | 6'7" | 215 | RS Senior | Transferred from Nevada. Will be eligible to play immediately since King II graduated from Nevada. | ||
| Marcus Jackson | 55 | G | 6'3" | 185 | RS Senior | Transferred from Rice. Will be eligible to play immediately since Jackson graduated from Rice. | ||
| Zack Moore | F | 6'5" | 200 | Sophomore | Transferred from Seattle. Under NCAA transfer rules, Moore will have to sit out for the 2017–18 season. Will have two years of remaining eligibility. | |||
| Devearl Ramsey | G | 5'10" | 170 | Sophomore | Transferred from Nevada. Under NCAA transfer rules, Ramsey will have to sit out for the 2017–18 season. Will have three years of remaining eligibility. |
|-!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]