| Champ: |  Manuel Santana |
| Runner: | Jan Leschly |
| Score: | 8–6, 6–3 |
| Draw: | 12 |
| Seeds: | 4 |
| Type: | singles doubles |
| Before Name: | Philadelphia International Indoor Championships |
| After Name: | Philadelphia International Indoor Open Championships |
See main article: article and 1968 Philadelphia International Indoor Championships. The event was being held for the first time during the open-era.
Manuel Santana won the title, beating Jan Leschly 8–6, 6–3 in the final.
Charlie Pasarell (semifinals) Manuel Santana (champion) Arthur Ashe (semifinals)