| Year: | 2018 |
| Conference: | Sun Belt Conference |
| Division: | I |
| Gender: | Men's |
| Teams: | 12 |
| Arena: | Lakefront Arena |
| City: | New Orleans, Louisiana |
| Champions: | Georgia State |
| Titlecount: | 2nd |
| Coach: | Ron Hunter |
| Coachcount: | 2nd |
| Mvp: | D'Marcus Simonds |
| Mvpteam: | Georgia State |
| Television: | ESPN3, ESPN2 |
The 2018 Sun Belt Conference men's basketball tournament was the postseason men's basketball tournament for the league for the 2017–18 NCAA Division I men's basketball season. It was held from March 7–11, 2018, in New Orleans, Louisiana, at Lake Front Arena. The tournament winner, Georgia State, received the conference's automatic bid to the NCAA tournament.
All 12 conference teams were eligible for the tournament. The top four teams received a bye to the quarterfinals of the tournament. Teams were seeded by record within the conference, with a tiebreaker system to seed teams with identical conference records.
| Seed | School | Conference | Tiebreaker | |
|---|---|---|---|---|
| 1 | 16–2 | |||
| 2 | Georgia State | 12–6 | ||
| 3 | Georgia Southern | 11–7 | ||
| 4 | Texas–Arlington | 10–8 | ||
| 5 | Appalachian State | 9–9 | 2–1 vs tied teams | |
| 6 | Louisiana–Monroe | 9–9 | 1–0 vs Georgia State | |
| 7 | Troy | 9–9 | 0–2 vs Georgia State | |
| 8 | Coastal Carolina | 8–10 | ||
| 9 | Texas State | 7–11 | 1–0 vs South Alabama | |
| 10 | South Alabama | 7–11 | 0–1 vs Texas State | |
| 11 | Arkansas State | 6–12 | ||
| 12 | Little Rock | 4–14 |
| Game | Time | Matchup | Score | Television | ||
|---|---|---|---|---|---|---|
| First round – Wednesday, March 7, 2018 | ||||||
| 1 | 11:30 am | No. 8 Coastal Carolina vs. No. 9 Texas State | 66–73 | |||
| 2 | 2:00 pm | No. 5 Appalachian State vs. No. 12 Little Rock | 93–64 | |||
| 3 | 5:00 pm | No. 7 Troy vs. No. 10 South Alabama | 69–62 | |||
| 4 | 7:30 pm | No. 6 Louisiana–Monroe vs. No. 11 Arkansas State | 76–54 | |||
| Quarterfinals – Friday, March 9, 2018 | ||||||
| 5 | 11:30 am | No. 1 Louisiana vs. No. 9 Texas State | 80–54 | ESPN3 | ||
| 6 | 2:00 pm | No. 4 Texas–Arlington vs. No. 5 Appalachian State | 84–63 | |||
| 7 | 5:00 pm | No. 2 Georgia State vs. No. 7 Troy | 73–51 | |||
| 8 | 7:30 pm | No. 3 Georgia Southern vs. No. 6 Louisiana–Monroe | 63–55 | |||
| Semifinals – Saturday, March 10, 2018 | ||||||
| 9 | 11:30 am | No. 1 Louisiana vs. No. 4 Texas–Arlington | 68–71 | ESPN3 | ||
| 10 | 2:00 pm | No. 2 Georgia State vs. No. 3 Georgia Southern | 73–67 | |||
| Championship – Sunday, March 11, 2018 | ||||||
| 11 | 1:00 pm | No. 2 Georgia State vs. No. 4 Texas–Arlington | 74–61 | ESPN2 | ||
| Game times are in Central Time. Rankings denote tournament seed. | ||||||
2018 Sun Belt Conference women's basketball tournament