|Full name||Josu Sarriegi Zumarraga|
|Date of birth||19 January 1979|
|Place of birth||Lazkao, Spain|
|Height||1.85 m (6 ft 1 in)|
|Playing position||Centre back|
|2002–2003||→ Eibar (loan)||28||(1)|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
In his country he played professionally with Alavés, Eibar and Athletic Bilbao, appearing in 71 La Liga games over the course of four seasons. He added 78 matches in Segunda División (five goals in total).
From 2007 until his retirement, Sarriegi represented Greece's Panathinaikos.
Sarriegi was born in Lazkao, Gipuzkoa. After having first appeared professionally with modest and amateur Basque teams, he joined Deportivo Alavés in 1999, making his first-team debut on 18 February 2001 in a 1–0 away win against CA Osasuna.
After a loan with neighbours SD Eibar in the second division, Sarriegi played 28 games in the 2004–05 season as Alavés returned to the top level after two years of absence. In the following campaign he was first-choice, but the team was relegated again.
Having missed only two league matches with another Basque side, Athletic de Bilbao, in 2006–07, Sarriegi joined Greece's Panathinaikos FC in August 2007. On 26 November of the following year he scored the winning goal for the Athens side as it defeated Inter Milan 1–0 at the San Siro, in a UEFA Champions League group stage match.
On 9 July 2010, after appearing regularly during three years, 31-year-old Sarriegi extended his contract for a further two seasons. The following year, after the departures of Djibril Cissé and Gilberto Silva, he was voted by his teammates as the new captain.
- Sarriegi se marcha al Panathinaikos (Sarriegi goes to Panathinaikos); Marca, 10 August 2007
- Inter progress despite Panathinaikos loss; UEFA.com, 26 November 2008
- Ανανέωσε ο Σαριέγκι; Gazzetta, 9 July 2010 (Greek)