Ian Ayre (18 August 1929 – 12 October 1991) was an Australian tennis player. He was educated at the Anglican Church Grammar School. Ayre was a contemporary of Frank Sedgman (1927), George Worthington (1928), Don Tregonning (1928), Rex Hartwig (1929), Ken McGregor (1929) and Mervyn Rose (1930). He was on the Australian Davis Cup team in 1951, 1952, and 1953, but never played in a match. In 1953 he reached the fourth round at Wimbledon, losing to Sven Davidson in straight sets, and the semifinals of the Australian Open, losing to Mervyn Rose in five sets.