Ilja

Ilja is a given name and surname. The given name is cognate to Ilya.

Notable people with the given name include:


 * Ilja Bereznickas (born 1948), Lithuanian animator, illustrator, scriptwriter and caricaturist
 * Ilja Bergh (1927–2015), Danish pianist and composer
 * Ilja Dragunov (born 1993), Russian professional wrestler
 * Ilja Glebov (born 1987), Estonian pair skater
 * Ilja Hurník (1922–2013), Czech composer, pianist and essayist
 * Ilja Leonard Pfeijffer (born 1968), Dutch poet, novelist, polemicist and classic scholar
 * Ilja Richter (born 1952), German actor
 * Ilja Rosendahl (born 1968), German film and music producer, actor, songwriter and musician
 * Ilja Seifert (1951–2022), German politician
 * Ilja Syrovatko, Russian professional basketball player, who plays in Dynamo Moscow
 * Ilja Szrajbman (1907–1943), Polish Olympic freestyle swimmer
 * Ilja Venäläinen (born 1980), Finnish football player
 * Ilja Wiederschein (born 1977), volleyball player from Germany

Notable people with the surname include:
 * Ivari Ilja, Estonian pianist best known for his work as an accompanist
 * Joze Ilja, Yugoslav slalom canoeist who competed in the mid-1950s