1965–66 Boston Celtics season Game log March

| Game | Date_ | Opponent | Score | Location_Attendance | Record |
|---|---|---|---|---|---|
| 70 | March 1 | @ St. Louis Hawks | 120–95 | Kiel Auditorium | 47–23 |
| 71 | March 2 | New York Knickerbockers | 140–104 | Boston Garden | 48–23 |
| 72 | March 4 | St. Louis Hawks | 112–132 | Providence, RI | 48–24 |
| 73 | March 5 | @ Philadelphia 76ers | 85–102 | Convention Hall | 48–25 |
| 74 | March 6 | Philadelphia 76ers | 110–113 | Boston Garden | 48–26 |
| 75 | March 7 | St. Louis Hawks | 106–104 | Memphis, TN | 49–26 |
| 76 | March 10 | @ Cincinnati Royals | 124–120 | Cincinnati Gardens | 50–26 |
| 77 | March 13 | Baltimore Bullets | 129–98 | Boston Garden | 51–26 |
| 78 | March 17 | @ Detroit Pistons | 128–103 | Cobo Arena | 52–26 |