Ilyés is a Hungarian surname. Notable people with the surname include:

Annamária Ilyés Ferenc Ilyés (born 1981), Hungarian handball player Iuliu Ilyés (born 1957), Romanian engineer and politician Ildikó Ilyés (born 1966), Hungarian racewalker Róbert Ilyés

See also Gyula Illyés Illés (disambiguation)