The crescent-chested babbler (Cyanoderma melanothorax) is a babbler species in the family Timaliidae and is native to the Indonesian islands of Java and Bali.

[1] It is ochreous-brown, has rufous-coloured wings, paler underparts and a black crescent across its breast.

[2] Myiothera melanothorax was the scientific name proposed by Coenraad Jacob Temminck in 1823 who described a babbler from Java.

[3][4] The generic name Cyanoderma was proposed by Tommaso Salvadori in 1874 for babblers with slender and pointed beaks.

[5] It was later placed in the genus Stachyris, but since 2020 is recognised as a Cyanoderma species.