Francisco "Kiko" Martínez Sánchez (born 7 March 1986) is a Spanish professional boxer. He is a world champion in two weight classes, having held the IBF featherweight title from 2021 to 2022, and the IBF super-bantamweight title from 2013 to 2014. At regional level, he held the European super-bantamweight title three times between 2007 and 2013, and the European featherweight title in 2018.