The sulphury flycatcher (Tyrannopsis sulphurea) is a passerine bird which is a localised resident breeder from Trinidad, the Guianas and Venezuela south to Amazonian Peru, northern Bolivia and Brazil.

This large tyrant flycatcher is found in savannah habitat with moriche palms.

The nest is an open cup of sticks in the crown of a moriche palm, and the typical clutch is two cream-coloured eggs blotched with brown.

The head and neck are dark grey, and there is a concealed yellow crown stripe.

Sulphury flycatchers wait on an exposed perch high in a palm and sally out to catch insects in flight.