Marjorie Acker Phillips (October 25, 1894 – June 19, 1985) was an American Impressionist painter and art collector.

Both men noticed Phillips artistic ability and suggested she pursue art as a career path.

[1][4] Despite living a socialite lifestyle alongside her husband, Phillips made the effort to paint every morning in her Washington, D.C., studio.

[1] She attended an art exhibition for Duncan Phillips at the Century Association in January, 1921.

[5] In 1930, the couple had collected so much artwork that they had to leave the mansion, with the art, and move into a nearby house in the Foxhall neighborhood.

[7] In 1971 she curated a retrospective about Paul Cézanne and published the book, Duncan Phillips and His Collection.

[1] Phillips donated a piece of property in Martha's Vineyard to the Sheriff's Meadow Foundation in 1980.

[2] The Winterthur Museum, Garden and Library has a holding of archival materials of Phillips'.