| Club: | Chelsea |
| Season: | 1937–38 |
| Manager: | Leslie Knighton |
| Chairman: | Lt. Col Charles Chrisp |
| Stadium: | Stamford Bridge |
| League: | First Division |
| League Result: | 10th |
| Cup1: | FA Cup |
| Cup1 Result: | Third round |
| League Topscorer: | George Mills (13) |
| Season Topscorer: | George Mills (13) |
| Largest Win: | 6–1 v Liverpool |
| Largest Loss: | 0–4 v West Bromwich Albion 0–4 v Derby County |
| Highest Attendance: | |
| Lowest Attendance: | |
| Pattern B1: | _chelsea1907h |
| Pattern So1: | _2bluestripes |
| Leftarm1: | 0000FF |
| Body1: | FFFFFF |
| Rightarm1: | 0000FF |
| Shorts1: | ffffFF |
| Socks1: | 000000 |
| Pattern So2: | _2bluestripes |
| Leftarm2: | FF0000 |
| Body2: | FF0000 |
| Rightarm2: | FF0000 |
| Shorts2: | FFFFFF |
| Socks2: | 000000 |
| Prevseason: | 1936–37 |
| Nextseason: | 1938–39 |
The 1937–38 season was Chelsea Football Club's twenty-ninth competitive season. Chelsea began the season brightly, and topped the table after a 2–1 win over Brentford in October 1937, but won only two of their next 21 league matches and ultimately finished 10th.