'''Deveau''' is a surname of French origin, being a cognate of the surname Devaux, which means "from the valleys". Notable people with the surname include:
*David Deveau (born 1953), American classical pianist *George R. Deveau (1891–1983), Canadian politician *J. Alphonse Deveau, (1917–2004), Canadian historian *John Deveau, Canadian politician *Louis Deveau (born 1931), Canadian businessman
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