Ilia is a given name and variant of Ilya.

Ilia is the name of:

• Ilia II of Georgia (born 1933), current Catholicos-Patriarch of Georgia
• Ilia Abuladze (1901–1968), Georgian historian, philologist and public figure
• Ilia Averbukh (born 1973), Russian ice dancer
• Ilia Beshkov (1901–1958), Bulgarian artist, writer, and pedagogue
• Ilia Braunstein (1908–1980), Belgian philatelist
• Ilia Calderón (born 1972), Colombian journalist
• Ilia Chavchavadze (1837–1907), Georgian writer, political figure, poet, and publisher
• Ilia Chernousov (born 1986), Russian cross country skier
• Ilia Datunashvili (1937–2022), Soviet Georgian former football player
• Ilia Fibiger (1817–1867), Danish writer and playwright
• Ilia Frolov (born 1984), modern pentathlete from Russia
• Ilia Giorgadze (born 1978), Georgian artistic gymnast
• Ilia Ignatev (born 1992), Kyrgyzstani sailor
• Ilia Iljiushenok (born 1993), Russian chess International Master
• Ilia Isaev (born 1980), Russian former competitive ice dancer
• Ilia Kaikatsishvili (born 1993), Georgian rugby union player
• Ilia Kandelaki (born 1981), retired Georgian footballer
• Ilia Klimkin (born 1980), Russian former competitive figure skater
• Ilia Koshevoy (born 1991), Belarusian professional cyclist
• Ilia Kulik (born 1977), Russian figure skater
• Ilia Lekach, chief executive officer of Adrenalina
• Ilia Londaridze (born 1989), Georgian professional basketball player
• Ilia Maissuradze (born 1977), Georgian rugby union player
• Ilia Malinin (born 2004), American figure skater of Russian-Uzbekistani parentage
• Ilia Odishelidze (1865–1924), Georgian military leader
• Ilia Popov (born 1982), Russian sledge hockey player
• Ilia Shtokalov (born 1986), Russian sprint canoeist
• Ilia Shuke, former footballer and coach
• Ilia Skirda (born 2002), Russian figure skater
• Ilia Spiridonov (born 1998), Russian pair skater
• Ilia Szrajbman (1907–1943), Polish Olympic freestyle swimmer
• Ilia Tkachenko (born 1986), Russian ice dancer
• Ilia Topuria (born 1997), Georgian mixed martial artist
• Ilia Trilling (1895–1947), German-born Yiddish theatrical producer and composer
• Ilia Vekua (1907–1977), Georgian mathematician
• Ilia Vlasov (born 1995), Russian male volleyball player
• Ilia Volkov (born 1985), Russian sledge hockey player
• Ilia Volok (born 1965), Soviet-born character actor
• Ilia Xhokaxhi (1948–2007), Albanian painter, scenographer, and costume designer
• Ilia Zdanevich (1894–1975), Georgian and French writer and artist
• Ilia Zedginidze (born 1977), Georgian former rugby union player
• Ilia Zhilin (born 1985), Russian male volleyball player
• Ilia or "Julia", first wife of Roman dictator Sulla
• Iliya Dyakov (born 1963), Bulgarian former footballer
• Iliya Kushev (born 1980), Bulgarian tennis player
• Iliya Pavlov (1960–2003), Bulgarian businessman
• Iliya Velichkov (born 1956), retired Bulgarian footballer

• Rhea Silvia, also known as Ilia, the mother of Romulus and Remus in Roman mythology
• Ilia (Mozart), a character in Mozart's Idomeneo
• Ilia (Star Trek), a character in Star Trek: The Motion Picture
• Ilia (The Legend of Zelda), a character in The Legend of Zelda: Twilight Princess
• Ilia Amitola, a recurring character in the animated web series RWBY

• Elia (disambiguation)
• Ilia (disambiguation)
• Ilija, given name
• Ilja, given name
• Iliya (name)