Ilka is a feminine given name. Notable people with the given name include:
*Ilka Agricola (born 1973), German mathematician
*Ilka Bessin (born 1971), German comedian and actress
*Ilka Chase (1905–1978), American actress and novelist
*Ilka Gedő (1921–1985), Jewish Hungarian artist
*Ilka Grüning (1876–1964), Jewish actress forced to flee Europe when the Nazis came to power in 1933
*Ilka Pálmay (1859–1945), born Ilona Petráss, a Hungarian-born singer and actress
*Ilka Semmler (born 1985), German beach volleyball player
*Ilka Soares (1932–2022), Brazilian actress
*Ilka Stitz (born 1960), German writer
*Ilka Štuhec (born 1990), Slovenian alpine ski racer
*Ilka Tanya Payán (1943–1996), Dominican actress and attorney who later became a prominent AIDS/HIV activist in the United States
*Ilka Van de Vyver (born 1993), Belgian volleyball player
*Ilka White, Australian artist
{{given name, Ilka
Feminine given names