Ehrmann (June 14, 1895 – March 18, 1993) was a Boston civic leader who fought against capital punishment both city and nationwide.
Best known for her work in establishing the 1951 "Mercy Law" in Massachusetts, which allowed juries to opt out of the death penalty on first-degree murder cases, Ehrmann was an influential leader of the Massachusetts Council for the Abolition of the Death Penalty (1928–1969) as well as the American League to Abolish Capital Punishment (1949–1969).
Ehrmann launched her career as a direct response to the internationally controversial Sacco and Vanzetti case, which her husband worked on as an assistant defense councilman.
Ehrmann's activism also spread to other areas; she was a national membership chairman of the American Jewish Committee, the first president of the League of Women Voters, and a member of the United Prison Association and the Friends of Framingham Reformatory.