In advance of a taxonomic revision of the Neotropical genus Cremastosperma (Annonaceae) nine new species are described here: Cremastosperma antioquense, C. awaense, C. chococola, C. dolichocarpum, C. longipes, C. magdalenae, C. napoense, C. stenophyllum, and C. westrae. A key is presented for the identification of species of Cremastosperma from extra-Amazonian Colombia and Ecuador plus Panama.