All Saints' Church — Ashmont, officially The Parish of All Saints — Ashmont, is a church of the Episcopal Diocese of Massachusetts located at 209 Ashmont Street in the Dorchester neighborhood of Boston, Massachusetts. The parish began in 1867 as a mission of nearby St. Mary's Church. The cornerstone for current structure was laid in November 1892, and the congregation held its first services in the new ediface December 27, 1893. Construction was financed largely through the generosity of Colonel Oliver Peabody, one of the founders of Kidder, Peabody & Co.