Tauna Kay Vandeweghe (born February 7, 1960) is an American former competition swimmer who participated in the 1976 Summer Olympics in Montreal, Quebec. She competed in the 100-meter backstroke and advanced to the semifinals of the event, recording a best time of 1:05.00 in the preliminary heats.

Vandeweghe is the daughter of NBA basketball player Ernie Vandeweghe and 1952 Miss America Colleen Kay Hutchins. Her brother Kiki VanDeWeghe and uncle Mel Hutchins also played NBA basketball, and both were NBA All-Stars. With her first husband, she has a son, Beau, who played volleyball with Pepperdine Waves, and daughter, CoCo Vandeweghe, a professional tennis player.