Cettia is a genus of small insectivorous passerines ("warblers") which make up the core of the newly recognized Cettiidae family. They were formerly placed in the Sylviidae, which at that time was a wastebin taxon for the warbler-like Sylvioidea. The range of this genus extends from Europe to Southeast Asia. The genus gets its name from the Cetti's warbler, itself named after the 18th century Italian zoologist, Francesco Cetti.