Rollers are named for their rolling flight behavior during courtship or territorial fights. They belong to the family Coraciidae consisting of two genera and 12 species listed below.

Genus: Coracias
European Roller Coracias garrulus
Abyssinian Roller Coracias abyssinica
Lilac-breasted Roller Coracias caudatus
Racquet-tailed Roller Coracias spatulata
Rufous-crowned Roller Coracias naevia
Indian Roller Coracias benghalensis
Temminck's Roller Coracias temminckii
Blue-bellied Roller Coracias cyanogaster

Genus: Eurystomus
Broad-billed Roller Eurystomus glaucurus
Blue-throated Roller Eurystomus gularis
Azure Roller Eurystomus azureus
Dollarbird Eurystomus orientalis