This is the slender man. He's known in several countries, by several names. Actually researching it came up with some pretty interesting things... But I digress.
I was inspired by a fantastic artist
It was thier slender man found here -[link]
- that introduced me to this crazy cryptid! *thedragonofdoom
's picture has a couple good links to sites involving the slender man.
It's known as: Feat Dubh (The Dark Man) Scotland, Takkenmann (Branch Man) Dutch, Der Großmann or Der Grosse Mann (The Tall Man) Germany