Oswald Pryor (15 February 1881 – 13 June 1971) was a South Australian cartoonist noted for his depictions of life in the Copper Triangle, particularly of miners from Cornwall.

He began work in the mines at age 13 years, under Captain H. R. Hancock.

His earliest work appeared in Quiz from 1901, and The Gadfly in 1907, both under the pseudonym "Cipher".

Encouraged by C. J. Dennis, he began submitting his cartoons depicting Cornish miners to The Bulletin under his own name.

[4] A new edition of Cornish Pasty which included content from Cousin Jacks and Jennys was published in 1976 ISBN 0 7270 0084 5