Ceratoperidinium is a genus of dinoflagellates in the order Gymnodiniales.

[2] It was first created in 1969 by Margalef, with Ceratoperidinium yeye as the type species.

However, because it was not correctly described it was considered invalid, as was C.

[3] In 1980, Lobelich III described the genus as Ceratoperidinium Margalef ex Loeblich III, renaming C. yeye as C.

[3] In 2014, Gyrodinium falcatum was reassigned to Ceratoperidinium based on genetic analysis.