Ruth Dunning (17 May 1911, Prestatyn — 27 February 1983, London) was a Welsh actress of stage, television, and film. She first came to prominence in the role of Gladys Grove in BBC Television's The Grove Family (1954–1957), also portraying that character in the 1955 film It's a Great Day. In 1962 she was awarded the British Academy Television Award for Best Actress for her work on Armchair Theatre.
Some of her other notable work includes Leonie in Intimate Relations (1953), Auntie B. in Urge to Kill (1960), Mrs. Mitchell in Hoffman (1970), Betty Atherton in The Sextet (1972), Agnes Henderson in The House in Nightmare Park (1973), Miss Minchin in A Little Princess (1973), Mildred Finch in An Unofficial Rose (1974–1975), Lesley Whittle's mother in The Black Panther (1977), and Mrs. Crabtree in Children of the Stones (1977).
- Save a Little Sunshine (1938)
- Intimate Relations (1953)
- It's a Great Day (1955)
- Urge to Kill (1960)
- And Women Shall Weep (1960)
- Hoffman (1970)
- The House in Nightmare Park (1973)
- The Black Panther (1977)