The silvery greater galago (Otolemur crassicaudatus monteiri) is a nocturnal primate from the galago family.

It is usually found in Brachystegia woodland, from Angola to Tanzania, western Kenya and Rwanda.

[1] The species was separated from the brown greater galago by Colin Groves in 2001, including O. m. argentatus as a subspecies,[1] but both the IUCN and the American Society of Mammalogists retain it as a subspecies.

[2][3]