Emma C. de Guzman (born December 8, 1949) is a Filipino Roman Catholic widow, laywoman, stigmatist and claimed Marian visionary. She is the co-founder, along with the late Sister Soledad Gaviola, of the Catholic lay group association La Pieta, dedicated to a Marian devotion under the title Mother of Love, Peace and Joy. Guzman claims to have first seen the Virgin Mary on the Feast of the Nativity of Mary in 1991.