Caleb Williams Saleeby FRSE (1878 – 9 December 1940) was an English physician, writer, and journalist known for his support of eugenics.

During World War I, he was an adviser to the Minister of Food and advocated the establishment of a Ministry of Health.

[1] His father died whilst he was young and his mother moved to 3 Malta Terrace in Stockbridge, Edinburgh.

[5] He was a resident at the Maternity Hospital and the Royal Infirmary of Edinburgh, and briefly at the York City Dispensary.

During World War I, he was an adviser to the Minister of Food and argued in favour of the establishment of a Ministry of Health.

[7] Although the Sunlight League did not overtly promote nudism Saleeby did confide to friends that the idea behind it was to stimulate the nudist movement.

[1] Saleeby was a proponent of the trophoblastic theory of cancer first proposed by embryologist John Beard.