The 1990–91 Sporting de Gijón season was the 29th season of the club in La Liga, the 15th consecutive after its last promotion.
After a tough start of season, where Carlos García Cuervo was sacked after twelve rounds, Ciriaco Cano took the helm of the team to end in the fifth position, qualifying to the UEFA Cup for the sixth time in the club's history.
[1] In the Copa del Rey, the club was eliminated in the semifinals by Mallorca.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.
Players may hold more than one non-FIFA nationality.