| Sport: | basketball |
| Year: | 1969–70 |
| Team: | Purdue Boilermakers |
| Conference: | Big Ten Conference |
| Short Conf: | Big Ten |
| Record: | 18–6 |
| Conf Record: | 11–3 |
| Head Coach: | George King |
| Arena: | Mackey Arena |
The 1969–70 Purdue Boilermakers men's basketball team represented Purdue University during the 1969–70 NCAA University Division men's basketball season. The Boilermakers played their home games at Mackey Arena in West Lafayette, Indiana as members of the Big Ten Conference. They were led by head coach George King in his fourth year as head coach. The Boilers finished the season 18–6, 11–3 in Big Ten play to finish in second place.