Heteropriacanthus, the glasseyes or glass bigeyes, are a genus of the bigeye family found in all tropical seas around the world. It occasionally makes its way into the aquarium trade. It grows to a size of 50.7 cm (20.0 in) in total length.

The glasseyes has been classified in a single species, Heteropriacanthus cruentatus, but recent morphological and genetic analysis indicates that glasseyes may be better divided into three species: Heteropriacanthus cruentatus (Atlantic Ocean and southwest Indian Ocean), H. fulgens (northeastern Atlantic), and H. carolinus (Indo-Pacific). H.cruentatus can differentiated from the rest of its genus by looking at its caudal and anal fin in which is distinct in colour.

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