César Azpilicueta, Spanish footballer
César Azpilicueta Tanco (born 28 August 1989) is a Spanish professional footballer who plays as a right-back or centre-back for Premier League club Chelsea, which he captains, and the Spain national team.

A youth product of Osasuna, Azpilicueta spent three seasons in La Liga before switching to Marseille, winning four major honours with the French club. In the summer of 2012, he moved to Chelsea, winning the Europa League in his first season and a domestic double two years later. He has made over 450 appearances for Chelsea and is currently seventh on their list of all-time appearances; Petr Čech is the only non-English person to have played more times for the club. He captained Chelsea to win the Europa League in 2019, the Champions League in 2021 and the FIFA Club World Cup in 2021.

Azpilicueta earned 55 caps for Spain at youth level in all age groups, and represented the under-21s in two European Championships, winning the 2011 edition. He made his first appearance with the full side in 2013 and was selected for two World Cups as well as Euro 2016 and Euro 2020.