Marie Kate Wouldes Lohr (28 July 1890 – 21 January 1975) was an Australian-born actress, active on stage and in film in Britain.

During a career of more than 60 years she created roles in plays by, among others, Bernard Shaw, J. M. Barrie, Frederick Lonsdale, Somerset Maugham, William Douglas-Home and Noël Coward.

Her London debut (after the family's move to Britain), was at age ten, in Shockheaded Peter as well as The Man Who Stole the Castle.

[1] (Shockheaded Peter starred Lohr's mother and George Grossmith Jr., and was produced at the Garrick Theatre in 1900.

)[7] The run was curtailed by the death of Queen Victoria, and brought back in 1901, a critic commented "one little actress, 'A Child', represented by Miss Marie Lohr, I think, being particularly good".