Juan Antonio Larrañaga
|Full name||Juan Antonio Larrañaga Gurruchaga|
|Date of birth||3 July 1958|
|Place of birth||Azpeitia, Spain|
|Height||1.77 m (5 ft 10 in)|
|* Senior club appearances and goals counted for the domestic league only.
A Real Sociedad youth graduate, Larrañaga started playing as a midfielder and began his career with local CD Lagun Onak, being purchased in 1977 by the community giants. In January 1980 he made his first-team debut in the Copa del Rey, against Navarre neighbours Peña Sport FC.
Although he appeared sparingly in the 1980–81 season, as Real won the first of its two consecutive titles, Larrañaga did play in the decisive draw at Sporting de Gijón in the last round, and featured in all the matches in the following campaign whilst adding two goals. From 1986 to 1992, he only missed two La Liga games combined.
Larrañaga retired at 36 at the end of 1993–94, having played in 460 top flight contests (589 overall, only behind Alberto Górriz). He is the only player of the league-winning sides to have played in the club's two grounds: Atotxa and Anoeta.
- ¡Vaya epilogo! (What a finish!); Mundo Deportivo, 27 April 1981 (in Spanish)
- "Leyendas de la Real Sociedad – Larrañaga" [Real Sociedad legends – Larrañaga] (in Spanish). El Diario Vasco. Retrieved 25 April 2017.
- Ensayo fatal y derrota inquietante (Fatal rehearsal and troubling defeat); Mundo Deportivo, 25 February 1988 (in Spanish)
- Badiola despide a Larrañaga (Badiola fires Larrañaga); El Diario Vasco, 9 April 2008 (in Spanish)