Carcharocles chubutensis, meaning "glorious shark of Chubut", from Ancient Greek: κλέϝος (kléwos) “glory/fame” + καρχαρίας (karkharías) “shark”, is a prehistoric megatoothed shark that lived during Oligocene, Miocene, and Pliocene epochs, approximately 28 – 5 million years ago. This shark is considered to be a close relative of another prehistoric megatoothed shark, C. megalodon. However, as is the case with C. megalodon, the classification of this species is disputed.