See list Chroicocephalus is a genus of medium to relatively small gulls which were included in the genus Larus until genetic evidence published in 2005 showed that Larus as then constituted was paraphyletic.

[3] An eleventh, Saunders's gull, was included until a 2022 study demonstrated that it did not belong in Chroicocephalus; it is now treated in its own genus Saundersilarus.

[4] The genus name Chroicocephalus is from Ancient Greek khroizo, "to colour", and kephale, "head".

[6] Representatives of this genus are found in regions/subregions all over the world, except for Antarctica; the species are often parapatric, but with two species together in New Zealand, the Mediterranean region, parts of southern Africa, and parts of South America.

Exceptionally, three species (black-headed, brown-headed, and slender-billed gulls) can occur together in parts of southwest Asia.