Founded on 24 October 1920, the club currently plays in La Liga, holding home games at the 18,375-capacity El Sadar Stadium. The team’s regular home kit is a red shirt with navy blue shorts. Osasuna is one of just four professional Spanish clubs to be owned by their members with an elected president.
Honours
- Copa del Rey: Runners-up 2004–05
- Segunda División: Winners (4): 1952–53, 1955–56, 1960–61, 2018–19
- Runners-up: 1934–35, 1939–40, 1999–2000
- Tercera División: Winners 7 times
Current squad
| 2020/2021 Team Roster (Updated 09-02-2021) |
| Manager : Jagoba Arrasate |
| Sergio Herrera (Goalkeeper) |
| Rubén Martínez (Goalkeeper) |
| Juan Pérez (Goalkeeper) |
| Nacho Vidal |
| Juan Cruz |
| Unai García |
| David García |
| Oier Sanjurjo (Captain) |
| Jony Loans (on loan from Lazio |
| Darko Brašanac (Serbia) |
| Chimy Ávila (Argentina) |
| Roberto Torres |
| Kike Barja |
| Facundo Roncaglia (Argentina) |
| Jonathan Calleri (Argentina) Loans (on loan from Maldonado) |
| Rubén García |
| Marc Cardona |
| Enric Gallego |
| Adrián López |
| Iñigo Pérez |
| Raúl Navas FC Cartegena (January 2021) |
| Aridane |
| Jon Moncayola |
| Lucas Torró |
| Javi Martínez |
| Aimar Oroz |
| Gorka Zabarte |
| Asier Córdoba |
| Brandon CD LEganes (January 2021) Loan |
| Manu Sanchez Atletico Madrid (January 2021) Loan |
| Jonas Ramalho Girona (January 2021) Loan |