Sphinx sequoiae, the sequoia sphinx, is a moth of the family Sphingidae. It is found in the United States from Oregon south through California, Nevada, and south-eastern Utah to Arizona and further south into Mexico's northern Baja California. The wingspan is 48–68 mm. There are two forms, a dark form (occurring from Oregon to central California) with blue-gray forewings with black dashes and a pale form (occurring in the juniper belt of the rest of the range) which is pale gray with only a faint blue tint.