Delabere Pritchett Blaine (1768–1845) was an English veterinary surgeon and Professor of Animal Medicine.
Blaine at one stage ran a veterinary infirmary in Wells Street, Oxford Street, London. From about 1812 he was in partnership there with William Youatt, for around 12 years; then Youatt took over the business.
He may have been a contributor to Rees's Cyclopædia. He is not in the Philosophical Magazine list, but in the Prospectus as writing on Veterinary Art and Sporting Life.