List of Chelsea F.C. seasons
This is a list of all seasons played by Chelsea Football Club in English and European football, from their inaugural season in 1905–06 to their last completed season. It details their record in every major competition entered, as well as the top goalscorers for each season. Top scorers in bold were also the top scorers in the Chelsea's division that season.
The club have won every major domestic and European honour, and have never been outside the top two divisions in English football. In total, Chelsea have won six League Championships, eight FA Cups, five League Cups, two UEFA Europa Leagues, one UEFA Champions League, and two UEFA Cup Winners' Cups. The club have also won various minor honours, including four FA Community/Charity Shields, two Full Members' Cups, and one UEFA Super Cup.
Key
- Prem – Premier League
- Div 1 – Football League First Division
- Div 2 – Football League Second Division
- FA Cup – FA Cup
- EFL Cup – EFL Cup
- CS – FA Community Shield
- CL – UEFA Champions League
- EL – UEFA Europa League
- CW – UEFA Cup Winners' Cup
- SC – UEFA Super Cup
- CWC – FIFA Club World Cup
- FM – Full Members' Cup
- P – Games played
- W – Games won
- D – Games drawn
- L – Games lost
- GF – Goals for
- GA – Goals against
- Pts – Points
- Pos – Final position
- 3Q – Third qualifying round
- R16 – Round of 16
- R1 – Round 1
- R2 – Round 2
- R3 – Round 3
- R4 – Round 4
- R5 – Round 5
- R6 – Round 6
- QF – Quarter-finals
- SF – Semi-finals
- RU – Runners-up
- W – Winners
| Champions | Runners-up | Promoted ↑ | Relegated ↓ | Top scorer in Chelsea's division |