Vilmarie Castellvi (born 21 March 1981) is a former professional tennis player from Puerto Rico.
She received a wildcard to play at the 2005 Sunfeast Open and defeated Emmanuelle Gagliardi in the first round but lost to Karolina à  prem in the second; this was her best WTA Tour performance. She did not qualify for any Grand Slam events.
While at Tennessee, Castellvi won the Honda Sports Award as the nation's best female tennis player in 2003.