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Chats (formerly sometimes known as "Chat-thrushes") are a group of small Old World insectivorous birds formerly considered Old World flycatchers.

This name is normally applied to the robust ground-feeding flycatchers found in Europe and Asia; these make up most of the subfamily Saxicolinae. There are a large number of genera. Most northern species are strong migrants.

Other songbirds called "chats" are:

• Australian chats, genera Ashbyia and Epthianura of the honeyeater family (Meliphagidae). They belong to a more ancient lineage than Saxicolinae.
• American chats, genus Granatellus of the cardinal family (Cardinalidae), formerly placed in the wood-warbler family. They belong to a more modern lineage than Saxicolinae.
• Yellow-breasted Chat (Icteria virens), an enigmatic North American songbird tentatively placed in the wood-warbler family (Parulidae); its true relationships are unresolved.