Robert Edwin Bush (11 October 1855 – 29 December 1939) was a British explorer, businessman, sportsman, and politician who was primarily known for his activities in colonial Western Australia. Arriving there in the 1870s, he was one of the settlers in the Gascoyne region and took up a number of pastoral lease. He served on the Western Australian Legislative Council from 1890 to 1893. He eventually returned to England, where he was a Civic Sheriff of Bristol and Deputy Lieutenant Gloucestershire.