Cayo

Cayo or cayó may refer to:


 * Cayo (film), a 2005 Puerto Rican film starring Roselyn Sánchez
 * Cayo District, a district in the west of the nation of Belize
 * San Ignacio, Belize, a town in the Cayo District (originally named "El Cayo")
 * Caio, Carmarthenshire, a village in Wales sometimes spelt with a 'y'
 * Cayo Hundred, a geographic division named after the village
 * "Cayó", a 2022 song by Arca
 * Elsa Cayo (born 1951), Peruvian filmmaker