The Leitche is a cryptid that was only seen in the video game The Secret Saturdays: Beasts of the Fifth Sun.

is a ghoulish humanoid swamp Cryptid with pale skin that appears wrinkled and waterlogged. It is covered in moss and mulch, possesses glowing green eyes, and has webbed hands with three inch claws. It is extremely similar to the Wendigo and Jenny Greenteeth. Both are monsters that wait for victims at the water's edge.

In New Age fantasy, Leitche is the German word for a lich, an undead, immortal human that was changed by black magic into an ageless, animated corpse, that is connected to the consciousness of the person it once was.