| Club: | Chelsea |
| Season: | 1966–67 |
| Manager: | Tommy Docherty |
| Chairman: | Charles Pratt, Jr. |
| Stadium: | Stamford Bridge |
| League: | First Division |
| League Result: | 9th |
| Cup1: | FA Cup |
| Cup1 Result: | Runners-up |
| Cup2: | League Cup |
| Cup2 Result: | Third round |
| League Topscorer: | Bobby Tambling (21) |
| Season Topscorer: | Bobby Tambling (28) |
| Largest Win: | 6–2 v Aston Villa |
| Largest Loss: | 1–6 v Sheffield Wednesday |
| Highest Attendance: | |
| Lowest Attendance: | |
| Pattern Sh1: | _thinwhitesides |
| Leftarm1: | 0000DD |
| Body1: | 0000DD |
| Rightarm1: | 0000DD |
| Shorts1: | 0000DD |
| Socks1: | 0000DD |
| Pattern Sh2: | _yellowsides |
| Leftarm2: | FFFF00 |
| Body2: | FFFF00 |
| Rightarm2: | FFFF00 |
| Shorts2: | 0000FF |
| Socks2: | FFFF00 |
| Prevseason: | 1965–66 |
| Nextseason: | 1967–68 |
The 1966–67 season was Chelsea Football Club's fifty-third competitive season.
Chelsea enjoyed a bright start to campaign and were unbeaten in their opening ten league matches. However, results dipped after striker Peter Osgood suffered a broken leg in a League Cup match against Blackpool in October. Osgood was replaced by Tony Hateley, the club's first £100,000 signing, but Hateley struggled for form and the club ultimately finished 9th in the First Division. They also reached the FA Cup Final for the first time since 1915, losing 2–1 to Tottenham Hotspur.