Perry McGillivray (August 5, 1893 – July 27, 1944) was an American competition swimmer and water polo player who represented the United States at the 1912 Summer Olympics and 1920 Summer Olympics. In the 1912 Olympics he competed in the 100-meter freestyle and reached the semifinal. He also was a member of the United States' 4×200-meter freestyle relay team, which won a silver medal. Eight years later he was fourth in the 100-metre backstroke and won a gold medal as a member of the United States' 4×200-meter freestyle relay team. He also played three matches for the United States water polo team, which finished fourth. In 1976, he was inducted into the USA Water Polo Hall of Fame.