Sigaus nitidus is a species of short-horned grasshopper in the family Acrididae, endemic to New Zealand.

This grasshopper eats a wide range of alpine herbs but avoids tussock grass.

[9] Sigaus nitidus has a variable life-cycle of two or three years, overwintering as egg, nymph or adult.

[10] Sigaus nitidus is found above the tree line on mountains in South Island New Zealand from Mt Arthur in the north to Canterbury, where it is the most abundant grasshopper species.

This article about a member of the grasshopper family Acrididae is a stub.