Sinifere is a Berber war-god known only from the Iohannis of Corippus, where he appears among the gods invoked by the eastern Libyan tribes during their sixth-century revolts against Byzantium. He is grouped with the bull-god Gurzil and the death-god Mastiman as one of the martial deities of the Laguatan and Austur confederations. Because he is attested by this single source, some scholars suspect he may have been a local or tribal god rather than a widely shared divinity, but he is nonetheless a distinct named being in the eastern Berber pantheon of late antiquity.