Founded in 1962, currently plays in Primera Federación – Group 2, holding home matches at the Tajonar Facilities with 4,500-seat capacity.

[2] The Iruña team had to play at least one division below Osasuna B, which soon had a consequence when the latter were relegated from their 2017–18 Segunda División B group and Iruña, who had maintained their status for 15 seasons, were administratively sent down to the Primera Autonómica de Navarra.

[5] In the summer of 2020, the Osasuna affiliation with Iruña ended (though they would remain a local partner club) and a new arrangement was made with CD Subiza to act as the B-team's feeder.

[6] 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.