The Savanna nightjar (Caprimulgus affinis), is a species of nightjar found in South and Southeast Asia. Eight subspecies are recognised: Caprimulgus affinis monticolus, Caprimulgus affinis amoyensis, Caprimulgus affinis stictomus, Caprimulgus affinis affinis, Caprimulgus affinis timorensis, Caprimulgus affinis griseatus, Caprimulgus affinis mindanensis and Caprimulgus affinis propinquus. Its habitat is open forest and areas with scrub. Its length is about 25 cm (9.8 in). The upperparts are brownish-grey and vermiculated, with pale brown speckles. The underparts are brown, with bars. The savanna nightjar is nocturnal. Its song is a squeaky kweek kweek. The IUCN Red List has assessed the species to be of least concern because it has a large range and its population trend is stable.