2002–03 Boston Celtics season Game log January

| Game | Date_ | Opponent | Score | Location_ | Record |
|---|---|---|---|---|---|
| 41 | January 20 | at Philadelphia 76ers | W 100-99 | First Union Center | 24-17 |
| 42 | January 22 | Milwaukee Bucks | L 97-106 | FleetCenter | 24-18 |
| 43 | January 24 | Denver Nuggets | W 77-58 | FleetCenter | 25-18 |
| 44 | January 26 | Orlando Magic | W 91-83 | FleetCenter | 26-18 |
| 45 | January 28 | at Detroit Pistons | L 83-86 | The Palace of Auburn Hills | 26-19 |
| 46 | January 31 | Detroit Pistons | L 66-118 | FleetCenter | 26-20 |