Lytocaryum is a monoecious genus of flowering plant in the palm family endemic to Brazil where 4 species are known.
Palms once classified as Microcoelum are herein included; the genus is closely related to Syagrus, from which it is differentiated only by abundant tomentum, strongly versatile anthers, and slight epicarp, mesocarp, and endocarp differences.
The name is Greek for "loose" and "nut".