Saint Clelia Barbieri (13 February 1847 - 13 July 1870) was an Italian Roman Catholic and the founder of the Little Sisters of the Mother of Sorrows.
Barbieri declined the married life in her adolescence - even when pressured - in favor of leading a life dedicated to the needs of others; she served as an educator for a while and joined a religious movement which made her a notable figure in her village.Barbieri's canonization cause started on 15 March 1930 when she was made a Servant of God, progressed with her beatification on 27 October 1968, and culminated with her sanctification on 9 April 1989 under Pope John Paul II.