Basque derby
| Location | Basque Country, Spain | 
|---|---|
| Teams | Athletic Bilbao Real Sociedad | 
| First meeting | 4 April 1909 Copa del Rey Club Ciclista 4–2 Athletic Bilbao | 
| Latest meeting | 4 May 2025 La Liga Real Sociedad 0–0 Athletic Bilbao | 
| Stadiums | San Mamés (Bilbao) Anoeta (San Sebastian) | 
| Statistics | |
| Meetings total | 193 | 
| Most wins | Athletic Bilbao (80) | 
| Top scorer | Telmo Zarra Jesús María Satrústegui (14 each) | 
| Largest victory | Athletic Bilbao 7–0 Real Sociedad 2 March 1935 | 
| Athletic Bilbao | Real Sociedad | 
The Basque derby (in Basque Euskal Derbia, in Spanish derbi Vasco) is the name of the football local derby between Real Sociedad and Athletic Bilbao. It embodies the inter-city rivalry between Bilbao and Donostia-San Sebastián, respectively the capitals of the neighbouring provinces of Biscay (Bizkaia) and Gipuzkoa in the Basque Country region of Spain. It is also occasionally referred to as the AP-8 derby, referring to the name of the highway which connects the cities.