This paper toy is a chibi Maka Albarn (Black Blood Dress), Soul Eater Evans's Meister, main female protagonist, and one of the main Meisters in the manga series Soul Eater, the papercraft created by El Joey.
There are other Maka Albarn papercrafts on the site:
Soul Eater – Maka Albarn Cube Craft Free Paper Toy
Soul Eater - Maka Albarn Free Papercraft
Soul Eater - Maka Albarn Ver.2
You can download the papercraft toy here: Soul Eater - Chibi Blood Dress Maka Albarn Free Paper Toy Download