Calantica is a genus of flowering plants in the family Salicaceae. It is endemic to Madagascar.
Calantica is closely related to the pantropical and diverse genus Homalium, from which it differs in having a superior ovary, instead of a semi-inferior ovary. The genus is also similar to Bivinia in its superior ovary but has numerous stamens and long spiciform inflorescences.
The following species are accepted by Plants of the World Online: