2002–03 Beşiktaş J.K. season

After signing Romanian manager Mircea Lucescu, Beşiktaş won the league for the 12th time in club' history.

Beşiktaş also had their most successful UEFA Cup run, by becoming a quarter finalist, however the club lost to S.S. Lazio 1–3 on aggregate, therefore eliminating them.

Beşiktaş lost to Gençlerbirliği 3–4 in the quarterfinals of the Turkish Cup.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Beşiktaş lost to Gençlerbirliği in the quarter finals.