Miguel Arturo Layun Prado is a Mexican professional footballer who plays for Spanish club Sevilla, on loan from Portuguese club Porto and the Mexico national team.

Layun began his career in 2006 with Veracruz, and in 2009 signed for Italian club Atalanta, becoming the first Mexican player to play in the Serie A, where he only made two substitute appearances. He returned to Mexico in 2010 with America, winning two league titles before joining Watford in January 2015. In his first season with the club, Layun played in 17 games, with Watford gaining promotion to the Premier League. On 28 May 2016, it was announced that Porto had signed Layun on a permanent deal. On 30 January 2018, Layun joined Spanish La Liga outfit Sevilla on a loan deal that ran for the remainder of the 2017–18 season and included a buyout option.

An international since 2013, Layun represented Mexico at the 2014 FIFA World Cup and two CONCACAF Gold Cups, winning the 2015 edition.