Siobhán Killeen (born 21 September 1995) is a Republic of Ireland women's international footballer. She has also played for UCD, Raheny United and Shelbourne Ladies. In 2010, she was a member of the Republic of Ireland U-17 squad that were runners-up in the 2010 UEFA Women's Under-17 Championship and quarter-finalists in the 2010 FIFA U-17 Women's World Cup. Killeen has also played senior ladies' Gaelic football for .