Nilgün is a Turkish feminine given name derived from the Persian word nilgun (نیلگون) meaning "indigo", "navy blue", "dark blue", "ultramarine". Nilgün may refer to:
Nilgün Belgün (born 1953), Turkish actress; see Wish Me Luck (film) Nilgün Çelebi (born 1950), Turkish sociologist Nilgün Marmara (1958–1987), Turkish poet Sevdiye Nilgün Acar (born 1958), Turkish artist
See also Nilay, a given name Nilüfer (disambiguation)