Doris Kathleen Flinn (15 October 1892 - 19 September 1977) was an English sculptor.

Both Flinn and Tuckett were active Communists and friends with Doris Brabham Hatt and Margery Mack Smith.

The plaster model for a portrait head of Tuckett made by Flinn in 1925 is now at the Bristol Museum.

In 1935 Flinn sculpted "Lawyer, Athlete, Aviator, Woman", a piece about Tuckett.

In 1930 the couple purchased The Rookery, a large stone-built XVIII century house at East Dundry, Bristol, where they lived there together until Tuckett's death in 1957.