İlkay Dikmen (born February 2, 1981 in Izmir, Turkey) is a Turkish swimmer competing in the breaststroke events. The 166 cm (5 ft 5 in) tall sportswoman at60 kg (130 lb) is a member of Fenerbahçe Swimming in Istanbul. She was born to Atilla and İlknur Dikmen in Izmir. She has a younger brother Eray. In 1992, she became the Turkish champion in her age group in the 100 m and 200 m breaststroke, the 100 m backstroke, the 100 m freestyle and the 200 m individual medley events. She swam in the swimming team of Fenerbahçe during the last two years of high school.