Lizzie Caswall Smith was an early 20th-century British photographer who specialised in society and celebrity studio portraits, often used for postcards.
She was associated with the Women's Suffrage movement and photographed many suffragettes including Flora Drummond, Millicent Fawcett and Christabel Pankhurst . She also photographed actors including Camille Clifford, Sydney Valentine, Billie Burke, and Maude Fealy.
Caswall Smith operated the Gainsborough Studio at 309 Oxford Street from 1907 until 1920 when she moved to 90 Great Russell Street where she stayed until her retirement in 1930 aged 60. She exhibited at the Royal Photographic Society in 1902 and 1913.