Frank Wall (21 April 1868 – 19 May 1950) was a physician and herpetologist who lived in Sri Lanka and India.
Wall was born in Colombo, Ceylon (now Sri Lanka). His father, George Wall, worked there and was responsible for initiating the study of natural history on the island. Frank studied medicine in London and joined the Indian Medical Service in 1893. Sent to India under the British Raj, Wall continued to work there until 1925 and researched many animals, especially snakes. He collected numerous snakes, many of which are now in the British Museum.
Wall was a member of the Bombay Natural History Society and published more than 200 scientific articles, as well as the book A Popular Treatise on the Common Indian Snakes. He died in Bournemouth.