Is isabelle fuhrman Russian

Answer 1

It is unclear.

Isabelle Fuhrman has not published her religious affiliation nor have either of her parents. She has admitted on Twitter to celebrating Christmas, but many Non-Christians also celebrate it as a secular holiday in the United States, so this is not a clear litmus test.

Answer 2

Russian-American. Her mother is Russian. Judging by the name Fuhrman I'd assume her dad is German or Austrian-American.