List of Bayer 04 Leverkusen seasons

This is a summary of the season results of the Bayer 04 Leverkusen football club across all competitions spanning from 1946 to the present.

Key
Key to league record:
 * Pld – Matches played
 * W – Matches won
 * D – Matches drawn
 * L – Matches lost
 * GF – Goals for
 * GA – Goals against
 * Pts – Points
 * Pos – Final position

Key to rounds:
 * Prel. – Preliminary round
 * QR1 – First qualifying round
 * QR2 – Second qualifying round, etc.
 * Inter – Intermediate round (between qualifying rounds and rounds proper)
 * GS – Group stage
 * 1R – First round
 * 2R – Second round, etc.
 * R64 – 1/32 Final (round of 64)
 * R32 – 1/16 Final (round of 32)
 * R16 – 1/8 Final (round of 16)
 * QF – Quarter-finals
 * SF – Semi-finals
 * F – Final
 * W – Winners
 * DNE – Did not enter