| Club: | Chelsea |
| Season: | 1945–46 |
| Manager: | Billy Birrell |
| Chairman: | Joe Mears |
| Stadium: | Stamford Bridge |
| League: | First Division |
| League Result: | N/A |
| Cup1: | FA Cup |
| Cup1 Result: | Fifth round |
| Season Topscorer: | Five players (1) |
| Highest Attendance: | |
| Lowest Attendance: | |
| Pattern B1: | _chelsea1907h |
| Pattern So1: | _2bluestripes |
| Leftarm1: | 0000FF |
| Body1: | FFFFFF |
| Rightarm1: | 0000FF |
| Shorts1: | ffffFF |
| Socks1: | 000000 |
| Pattern B2: | _chelsea1905a |
| Pattern So2: | _2_stripes_white |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | FFFFFF |
| Socks2: | 0000ff |
| Prevseason: | 1944–45 |
| Nextseason: | 1946–47 |
The 1945–46 season was Chelsea Football Club's thirty-second competitive season. It saw the first competitive football in England since the end of the Second World War, the FA Cup; Chelsea reached the fifth round. The Football League did not resume until the following season, so Chelsea continued to play in the regional Football League South; Chelsea finished 10th in the 22-team league. In November, the club also played a high-profile friendly match against FC Dynamo Moscow of the Soviet Union.