|Full name||Agustín Aranzábal Alkorta|
|Date of birth||15 March 1973|
|Place of birth||Bergara, Spain|
|Height||1.86 m (6 ft 1 in)|
|Playing position||Left back|
|1992–1994||Real Sociedad B||34||(7)|
|* Senior club appearances and goals counted for the domestic league only.
Aranzábal was born in Bergara, Gipuzkoa. A product of Basque Country giants Real Sociedad's youth system he first appeared with the main squad on 21 February 1993, in a 1–5 away loss against Deportivo de La Coruña. After two seasons playing mainly with the B-side, he went on to be an undisputed first-choice for one full decade, for instance playing 32 games for the 2002–03 runners-up.
In July 2004, still in La Liga, Aranzábal moved to Real Zaragoza, where he was used as a backup to Paraguayan Delio Toledo. He retired after a small stint with amateurs CD Vera Puerto de la Cruz in Canary Islands, with ex-Spain international (also a Real Sociedad teammate) Javier de Pedro also starting the campaign but being promptly dismissed.
- Spain U21
- "Leyendas de la Real Sociedad – Aranzabal" [Real Sociedad legends – Aranzabal] (in Spanish). El Diario Vasco. Retrieved 25 April 2017.
- Celades jugará con el Kitchee de Hong Kong (Celades will play with Hong Kong's Kitchee); Sport, 6 February 2010 (in Spanish)
- “No soy vengativo” (“I do not hold grudges”); Mundo Deportivo, 8 June 1995 (in Spanish)
- Agustín Aranzábal – FIFA competition record
- Qué fue de... Aranzabal (What happened to... Aranzabal); La Liga, 21 April 2014 (in Spanish)
- Italia ya ganó un Europeo a España en el 1996 (Italy has already won European Championships against Spain in 1996); Orgullo Bianconero, 18 June 2013 (in Spanish)