|Full name||Joseba Garmendia Elorriaga|
|Date of birth||4 October 1985|
|Place of birth||Basauri, Spain|
|Height||1.82 m (6 ft 0 in)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 17 December 2017
A product of Athletic Bilbao's famed youth system, Garmendia made his first-team debut in 2006–07's first matchday, in a 1–1 local derby with Real Sociedad. During his three-year professional spell with the Basques, he never appeared in more than 18 La Liga games; he scored his first goal in the competition on 10 December 2006, helping to a 4–2 home win against Recreativo de Huelva.
In late July 2009, Garmendia bought out the remaining year of his contract and moved to second division club CD Numancia in a 2+1 contract – former Athletic teammate Iñigo Vélez also made the move. He continued competing in that level in the following years, with Girona FC and CD Mirandés, suffering an anterior cruciate ligament whilst at the service of the former that sidelined him for several months.
- Athletic y Real Sociedad empatan un derbi pobre en juego y ambiente (Athletic and Real Sociedad draw in derby lacking in play and atmosphere); El Mundo, 27 August 2006 (in Spanish)
- Urzaiz da al Athletic su primera victoria en casa (Urzaiz gives first home win to Athletic); El Mundo, 10 December 2006 (in Spanish)
- Joseba Garmendia ficha por el Numancia (Joseba Garmendia signs for Numancia); Diario AS, 24 July 2009 (in Spanish)
- Joseba Garmendia, nuevo refuerzo del Girona (Joseba Garmendia, new Girona addition); Marca, 29 July 2011 (in Spanish)
- Joseba Garmendia, nuevo jugador del CD Mirandés (Joseba Garmendia, new CD Mirandés player) Archived 7 March 2014 at the Wayback Machine.; CD Mirandés, 24 January 2014 (in Spanish)
- Posible lesión de cruzados para Joseba Garmendia (Possible cruciate injury for Joseba Garmendia); El Desmarque, 4 October 2012 (in Spanish)
- Joseba Garmendia, David Prieto y Víctor Ruiz vestirán de grana (Joseba Garmendia, David Prieto and Víctor Ruiz will wear grana); Real Murcia, 1 September 2014 (in Spanish)