Nika is a surname. Notable people with this name include the following:
Ansi Nika (born 1990), Albanian footballer
Çiprian Nika (1900–1948), Albanian Catholic priest, Franciscan, teacher, and publicist
Iltjan Nika (born 1995), Albanian road cyclist
Katerina Nika (born 1962), Greece chess player
Lelo Nika (born 1969), Serbian and Romanian Romani accordionist
Marily Nika, Greek computational scientist and product manager
Palokë Nika (1892–1961), Albanian footballer, sports events organizer, referee and sports journalist
Pavlina Nika (1931–2011) Albanian singer