Hilkka is the given name of the following people:
Hilkka Kemppi (born 1988), Finnish politician Hilkka Nenonen, Finnish diplomat Hilkka Rantaseppä-Helenius (1925–1975), Finnish astronomer Hilkka Riihivuori (born 1952), Finnish cross-country skier Hilkka Toivola (1909–2002), Finnish artist Hilkka Vahervuori (born 1942), Finnish long track speed skater