|Full name||Carlos Gurpegui Nausia|
|Date of birth||19 August 1980|
|Place of birth||Pamplona, Spain|
|Height||1.81 m (5 ft 11 in)|
|Playing position||Centre back / Defensive midfielder|
|* Senior club appearances and goals counted for the domestic league only and correct as of 21 December 2014.
† Appearances (Goals).
A product of the famous Athletic de Bilbao's Lezama youth academy, Gurpegui was born in Pamplona, Navarre, and made his first-team – and La Liga – debut on 31 March 2002 in a 2–5 away defeat against Villarreal CF, going on to establish himself as the first-choice holding midfielder in the following years with 121 games in four seasons. On 17 January 2004 he scored a late equaliser against FC Barcelona, in a 1–1 draw at the Camp Nou.
Gurpegui was banned for two years on 3 November 2003, for testing positive for nandrolone in a 1 September 2002 game against Real Sociedad (2–4 away defeat, scoring both goals) the previous season. The ban was initially suspended after repeated appeals, with the player claiming that his body produced nandrolone naturally, but the appeals were in vain as he eventually was forced to serve his sentence, which ran until 23 April 2008; Athletic Bilbao, however, neither released the player nor took his number from the official squad, and he returned to action in a 0–3 away loss against Real Madrid, four days later.
In the 2008–09 season Gurpegui was used mostly as a backup, due to the emergence of youngster Javi Martínez, but regained his starting position in the following years, precisely alongside Martínez. On 28 November 2010 he headed home in the last minute against hometown's CA Osasuna, in a 1–0 home win.
Gurpegui was again relegated to the bench for the 2011–12 campaign, following the arrival of new coach Marcelo Bielsa. On 23 October 2011, after having replaced Andoni Iraola af half-time of an eventual 1–1 away draw against Valencia CF, he also had to leave the pitch early into the second half, with a torn anterior cruciate ligament.
- UEFA Europa League: Runner-up 2011–12
- Copa del Rey: Runner-up 2008–09, 2011–12
- Supercopa de España: Runner-up 2009
|Athletic Bilbao||2001–02||La Liga||4||0||0||0||—||—||4||0|
- Las cuatro esquinas de Gurpegi (Gurpegi's four corners); Deia, 4 September 2010 (Spanish)
- Two-year ban for Gurpegi; UEFA.com, 3 November 2003
- Blundering Bilbao plotting course towards the drop; The Guardian, 30 April 2007
- Barcelona 1–1 Athletic Bilbao; ESPN Soccernet, 17 January 2004
- Carlos Gurpegi, organizador de juego y goleador (Carlos Gurpegi, playmaker and scorer); El Mundo Deportivo, 2 September 2002 (Spanish)
- Gurpegi given permission to play; UEFA.com, 3 December 2003
- Athletic announce new Gurpegui appeal; UEFA.com, 26 November 2004
- Gurpegi hits late winner; ESPN Soccernet, 28 November 2010
- Soldado saves the day for Valencia; ESPN Soccernet, 23 October 2011
- Gurpegi set for lengthy spell out; ESPN Soccernet, 24 October 2011
- Gurpegi: "Hemos mejorado" (Gurpegi: "We have improved"); El Mundo Deportivo, 22 July 2012 (Spanish)
- "Gurpegui: Carlos Gurpegui Nausia". BDFutbol. Retrieved 5 February 2014.
- "Gurpegui". Soccerway. Retrieved 5 February 2014.