Efrén Llarena is a Spanish rally driver born 26 May 1995 in Espinosa de los Monteros, Burgos, Castilla y León.
[4] Llarena made his rally debut in 2013 just weeks after his 18th birthday at the Rallysprint de San Miguel in a Renault Clio Sport.
That year he also debuted in four-wheel-drive in a Ford Fiesta R5 at Rally Comunidad de Madrid RACE, finishing fourth out of 88 starters.
[2][3] In 2021, switching to a Škoda Fabia Rally2 evo, Llarena improved again by finishing second in the ERC behind ex-Volkswagen, Citroën and Hyundai works driver Andreas Mikkelsen.
[2][3] In 2022, Llarena scored his first ERC win at the Azores Rallye, when he overtook local driver Ricardo Moura on the final stage.