| Year: | 1948 |
| Teams: | 8 |
| Finalfourarena: | Madison Square Garden |
| Finalfourcity: | New York City |
| Champions: | Kentucky Wildcats |
| Titlecount: | 1st |
| Champgamecount: | 1st |
| Champffcount: | 2nd |
| Runnerup: | Baylor Bears |
| Gamecount: | 1st |
| Runnerffcount: | 1st |
| Semifinal1: | Holy Cross Crusaders |
| Finalfourcount: | 2nd |
| Semifinal2: | Kansas State Wildcats |
| Finalfourcount2: | 1st |
| Coach: | Adolph Rupp |
| Coachcount: | 1st |
| Mop: | Alex Groza |
| Mopteam: | Kentucky |
| Attendance: | 72,523 |
| Topscorer: | Alex Groza |
| Topscorerteam: | Kentucky |
| Points: | 54 |
The 1948 NCAA basketball tournament involved 8 schools playing in single-elimination play to determine the national champion of men's NCAA Division I college basketball. It began on March 19, 1948, and ended with the championship game on March 23 in New York City. A total of 10 games were played, including a third place game in each region and a national third place game.
Kentucky, coached by Adolph Rupp, won the national title with a 58–42 victory in the final game over Baylor, coached by Bill Henderson. Alex Groza of Kentucky was named the tournament's Most Outstanding Player.
The following are the sites selected to host each round of the 1948 tournament:
| Region | Team | Coach | Conference | Finished | Final Opponent | Score |
|---|---|---|---|---|---|---|
| East | ||||||
| East | Gordon Ridings | EIBL | Regional Fourth Place | Michigan | L 66–49 | |
| East | Doggie Julian | Independent | Third Place | Kansas State | W 60–54 | |
| East | Southeastern | Champion | Baylor | W 58–42 | ||
| East | Ozzie Cowles | Big Ten | Regional third place | Columbia | W 66–49 | |
| West | ||||||
| West | Southwest | Runner-up | Kentucky | L 58–42 | ||
| West | Big Six | Fourth Place | Holy Cross | L 60–54 | ||
| West | Pacific Coast | Regional third place | Wyoming | W 57–47 | ||
| West | Everett Shelton | Regional Fourth Place | Washington | L 57–47 | ||