The 2023–24 season was RCD Espanyol's 123rd season in existence and first one back in the Segunda División, the second division of association football in Spain.

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

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

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

Win Draw Loss Fixtures Source: Soccerway Source: LaLiga.com The league fixtures were unveiled on 28 June 2023.