Neku may refer to:
Neku language, an Oceanic language of New Caledonia.
Neku Sakuraba, a fictional character in The World Ends With You
Neku Siyar (c.1671–1723), claimant to the throne of India
Neku Atawodi (b. 1987), Nigerian polo player
Hemistomia neku, a species of freshwater snail
Neku, a Nepali musical instrument