Philothamnus is a genus of snakes in the family Colubridae. The genus is endemic to Sub-Saharan Africa.

It is a beautifully-marked, bright green snake that is active during the day when it hunts for geckos and frogs.

This snake climbs well but is usually found on the ground, especially along the banks of well-shaded rivers and streams. It is quick to escape when disturbed and will bite readily if handled, but is completely harmless.