Emma Guffey Miller (July 6, 1874 – February 23, 1970) was an American feminist activist and long-time Democratic Party official.

They married on October 28, 1902, and continued to live in Japan for five years, part of which time she taught.

[2] From 1921 to 1925 she was a member of the Pennsylvania board of League of Women Voters, but a dedicated Democrat, she resigned over the group's insistence on nonpartisanship.

[2] Miller was a delegate to every Democratic national convention beginning in 1924, when she became the first woman to receive votes for a Presidential nomination, until her death more than half a century later.

[2] Historian Rebecca DeWolf has classified Miller as an emancipationist who believed in equality for women.