This papercraft is Android 18 Head, Android 18 is Dr. Gero‘s eighteenth android creation, designed to serve Dr. Gero‘s vendetta against Goku, based on the Dragon Ball series, the paper model is created by hyakunin.
There are other Android 18 paper models on the site:
Dragon Ball – Realistic Android 18 Free Papercraft
Dragon Ball – Realistic Android 18 Ver.2 Free Papercraft
Dragon Ball – Chibi Krillin and Android 18 Free Papercrafts
Dragon Ball – Chibi Android 18 Ver.2 Free Papercraft
And there are also Chibi Android 16, Android 17, and Android 19 papercrafts available.
You can download this papercraft template here: Dragon Ball - Android 18 Head Papercraft Free Template Download