Peltanthera is a genus of flowering plants containing a single species, P. floribunda. The genus was originally placed in family Loganiaceae and has since been variously placed in Buddlejaceae, Scrophulariaceae, Gesneriaceae, or in its own family Peltantheraceae. As of 2016, it is considered by the Angiosperm Phylogeny Group to be unplaced in any family, but within the order Lamiales.