Newtonia could refer to:
*
Newtonia, Cheshire, England
*
Newtonia, Missouri, a town in Missouri, USA
* ''
Newtonia (bird)'', a genus of vangas, passerine birds endemic to Madagascar
* ''
Newtonia (plant)'', a genus of flowering plants in the family Fabaceae
*
662 Newtonia, a minor planet
{{disambiguation, geo
Genus disambiguation pages