Fairuza was born in Point Reyes, California, and her original name is Fairuza Alejandra Feldthouse. Until the age of two, she lived in Cloverdale, California, with her mother. Later both of them moved to Vancouver, British Columbia, and there she began acting at the tender age of six. Later in search of different roles, she moved to London and then to Paris. She stayed there for six months before returning to Vancouver. Then she signed an act in The Craft and had to move to Los Angeles.
The major USPs were her blue eyes and dark hair that became her trademark in acting from the age of 11.