Sisters of Our Lady of Mercy may refer to:
Congregation of the Sisters of Our Lady of Mercy, a Catholic religious order founded in Poland in 1862 Sisters of Charity of Our Lady of Mercy, a Catholic religious order founded in the United States in 1829 Sisters of Charity of Our Lady Mother of Mercy, a Catholic religious order founded in the Netherlands in 1832
See also Daughters of Our Lady of Mercy, a Catholic religious order founded in Italy in 1837 Sisters of Mercy (disambiguation)