Nomorhamphus aenigma is a species of fish belonging to the family Zenarchopteridae.

The species is found in Sulawesi, Indonesia .

The fish grows up to 6.1 centimetres (2.4 in) long (SL).

[1][2] The name aenigma comes from ancient Greek noun for "riddle".

[1] As of 2024, the IUCN has not evaluated Nomorhamphus aenigma.