ART INSPIRATION Serena Jameka Williams (born September 26, 1981) is an American professional tennis player. She was ranked world No. 1 in singles by the Women's Tennis Association (WTA) for 319 weeks, including a joint-record 186 consecutive weeks, and finished as the year-end No. 1 five times. She won 23 Grand Slam singles titles, the most by any player in the Open Era, and the second-most of all time (behind Margaret Court's 24).