Oswald Robinson Snowball (18 July 1859 – 16 March 1928) was an English-born Australian politician. Snowball was born in Wolsingham, England, and arrived in Australia in 1868 where his family spent three years on the land. He studied at Carlton College and the University of Melbourne where he qualified as a solicitor and was admitted to practice in 1883. He was a partner in the firms Briggs & Snowball and later Snowball & Kaufmann.