Ovarian torsion with inguinal hernia in 3- and 4-month-old girls were reported. Taxis was attempted but failed in both patients. On admission, 5X4cm, and 4X3cm, oval-shaped tender masses, which were heterogenic echogenic on US were found at the left inguinal region with redness and swelling of the left labia majora pudendi. At exploration, clockwise torsion (360 degrees) of the left ovary and tip of Fallopian tube was found in both patients. Histologic examination showed massive hemorrhage and complete necrosis of the ovaries.