| Position: | Defensive end |
| Number: | 77, 72 |
| Birth Date: | 9 April 1966 |
| Birth Place: | Louisville, Kentucky, U.S. |
| Draftyear: | 1990 |
| Draftround: | 3 |
| Draftpick: | 55 |
| College: | Kentucky |
| Teams: | |
| Highlights: |
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| Statlabel1: | Tackles |
| Statvalue1: | 177 |
| Statlabel2: | Sacks |
| Statvalue2: | 5 |
| Statlabel3: | Touchdowns |
| Statvalue3: | 1 |
| Pfr: | B/BarnOl20 |
Oliver Wesley Barnett (born April 9, 1966) is a former American football defensive end in the National Football League (NFL) who played for the Atlanta Falcons, Buffalo Bills, and San Francisco 49ers. He was selected bu the Falcons in the third round of the 1990 NFL draft. He currently is an assistant football coach at Henry Clay High School in Lexington, Kentucky