Representatives for the Superior Court of Los Angeles County and for Jenner confirmed to ABC News that a judge signed off on the changes today and that the reality TV star's full name is Caitlyn Marie Jenner.
The Associated Press reported earlier this month that Jenner, 65, filed the petition so that her name and gender would "better match my identity." However, other details were kept private to protect the former Olympian, according to the AP.
"Although public support for my transition has been overwhelmingly supportive, I am also receiving unwelcome negative attention from private citizens, including threats of bodily harm," Jenner wrote in a sworn declaration obtained by the AP.
Jenner, 65, revealed in April that she is a woman. Her new look debuted on the cover of Vanity Fair in June.