Julia Olehivna Vakulenko (Ukrainian: Юлія Оле́гівна Вакуленко; born 10 July 1983) is a Ukraine-born former tennis player.

3, Amélie Mauresmo, at the German Open in Berlin, 2–6, 6–1, 6–2 (her career best), and then defeated Dinara Safina, 6–3, 5–7, 6–3, before retiring in the first set in the semifinals to eventual champion Ana Ivanovic due to an injury.

She eventually reached the fourth round, her best performance at a major, before falling to Ágnes Szávay.

En route, she beat Rossana de los Ríos, home favourite Stéphanie Dubois, Olga Govortsova and Julie Ditty.

In the final, she lost 4–6, 1–6 to three-time Grand Slam champion Lindsay Davenport, who was playing in only her third event since giving birth.