Marat is a male and female given name.
It is a common given name for males from the former Soviet republics (Марат).
In Argentina it is usually a given name for females.
[1] In Russia it is a common variant of the Tatar name Morat (Морат), which is derived from the Arabic Murad (مراد).
[2] Another influence could be the French revolutioner Jean-Paul Marat.