CA Osasuna B
| Full name | Club Atlético Osasuna "B" | |||
|---|---|---|---|---|
| Nickname(s) | Las Rojillos (The Reds) / Promesas | |||
| Founded | 1962 | |||
| Ground | Tajonar, Aranguren, Navarre, Spain | |||
| Capacity | 4,500 | |||
| President | Luis Sabalza | |||
| Head coach | Santi Castillejo | |||
| League | Primera Federación – Group 1 | |||
| 2024–25 | Primera Federación – Group 1, 14th of 20 | |||
| Website | www | |||
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Club Atlético Osasuna B, usually known as Osasuna Promesas is the reserve team of CA Osasuna, a Spanish football club based in Pamplona, in the autonomous community of Navarre. Founded in 1962, currently plays in Primera Federación – Group 2, holding home matches at the Tajonar Facilities with 4,500-seat capacity.