| Club: | Charlton Athletic |
| Season: | 1988–89 |
| Manager: | Lennie Lawrence |
| Stadium: | Selhurst Park |
| League: | First Division |
| League Result: | 14th |
| Cup1: | FA Cup |
| Cup1 Result: | Fifth round |
| Cup2: | League Cup |
| Cup2 Result: | Third round |
| Prevseason: | 1987–88 |
| Nextseason: | 1989–90 |
During the 1988–89 English football season, Charlton Athletic F.C. competed in the Football League First Division.
Charlton's kit was manufactured by Admiral and sponsored by The Woolwich.