Bertram Charles Percival Park OBE (1883–1972) was an English portrait photographer whose work included British and European royalty.

In 1919, with funding from the Egyptologist Lord Carnarvon, he established studios at 43 Dover Street, London, with his wife Yvonne and the children's photographer Marcus Adams.

In 1924 they photographed the first English production of George Bernard Shaw's Saint Joan starring Sybil Thorndike.

[13] Park's photograph was in black and white so Sickert was obliged to add colour to the painting, however, he used a restricted palette causing the critic Frank Rutter to describe the work as "practically a monochrome".

[12] Park and Gregory's theatrical portraits form part of the University of Bristol Theatre Collection.

This aspect of his oeuvre is discussed extensively in Annebella Pollen's 2021 book, Nudism in a Cold Climate.

[20] In 1984, his daughter June presented the National Post Museum with an album of 25 pages that Park had created in the late 1940s of his photographs and the stamps based upon them.