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