Crenicichla regani

Crenicichla regani is a species of cichlid native to South America. It is found in the Amazon River basin and in the Trombetas River at Cachoeira Porteira, Brazil. This species reaches a length of 7.9 cm.

The fish is named in honor of Charles Tate Regan (1878–1943), of the Natural History Museum in London, who was the last ichthyologist in 1913 to revise the genus Crenicichla before Ploeg took on the task.