Conus grangeri, common name Granger's cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies. Like all species within the genus Conus, these snails are predatory and venomous. They are capable of stinging humans, therefore live ones should be handled carefully or not at all.

Description The length of their seashell varies between 31 mm and 75 mm. The diameter measures around 22 mm. The shell is elongated in shape, whitish and broadly banded with yellow. The aperture is moderately wide and white.

Distribution This marine species occurs in the Red Sea and off Sri Lanka and the Western Pacific; off the Philippines and Australia (the Northern Territory)