Phacellodomus is the genus of thornbirds, birds in the family Furnariidae. They are found in woodlands, shrublands, and grasslands, often near water, in South America.

Taxonomy: The genus Phacellodomus was described in 1853 by the German naturalist Ludwig Reichenbach to accommodate the rufous-fronted thornbird. The genus name combines the Ancient Greek phakellos meaning "bundle of twigs" and domos meaning "house".

Species: The genus contains ten species:

Image	Scientific name	Common Name	Distribution
125px]]	Phacellodomus rufifrons	Rufous-fronted thornbird	northern Peru, central and northeastern South America
-	Phacellodomus inornatus	Plain thornbird	Venezuela and northeastern Colombia
-	Phacellodomus striaticeps	Streak-fronted thornbird	eastern Puna grassland
-	Phacellodomus sibilatrix	Little thornbird	northern Argentina, Paraguay, southeastern Bolivia and western Uruguay
-	Phacellodomus dorsalis	Chestnut-backed thornbird	upper Marañón River
125px]]	Phacellodomus maculipectus	Spot-breasted thornbird	southern Andean Yungas
125px]]	Phacellodomus striaticollis	Freckle-breasted thornbird	Uruguay, northeastern Argentina and South Region
125px]]	Phacellodomus ruber	Greater thornbird	Cerrado, Bolivia, Paraguay and northern Argentina
125px]]	Phacellodomus arythrophthalmus	Orange-eyed thornbird	eastern Brazil
125px]]	Phacellodomus ferrugineigula	Orange-breasted thornbird	southeastern Brazil

Phacellodomus ferrugineigula – formerly a subspecies of P. erythrophthalmus.