- any of an Old World family (Muscicapidae) of small passerine birds that catch insects in flight
- tyrant flycatcher
- Any of various Eurasian birds of the family Muscicapidae that feed on insects, usually catching the insects in flight.
- Any of various similar birds of the family Tyrannidae, found throughout the Americas. Also called tyrant flycatcher.
- Any of various similar birds of the Monarchidae family, found in Asia, Africa, and Australia, or the Ptilogonatidae family, found primarily in Central America.