Santiago Urkiaga Pérez (born 18 April 1958) is a Spanish former professional footballer who played as a right-back.

Born in Barakaldo, Biscay,[2] Urkiaga spent nine seasons of his career with local powerhouse Athletic Bilbao,[3] being an ever-present fixture in the club's back-to-back La Liga conquests (1983–84)[4][5] and starting in all the 67 games he appeared in during that timeframe.

He made his debut in the competition on 13 May 1979, playing 26 minutes in a 4–0 away loss against Atlético Madrid, going on to total 345 official appearances with seven goals.

[2] Urkiaga's final two seasons were spent with RCD Español where his former boss Javier Clemente was now the manager,[6] helping the Catalan side to reach the final of the UEFA Cup in his first year, a penalty shootout loss to Germany's Bayer 04 Leverkusen.

Urkiaga earned 14 caps for the Spain national team in four years, and was included in the 1982 FIFA World Cup[8] and UEFA Euro 1984 squads, being first-choice at the latter tournament as the nation finished second to hosts France.