Arthur Bettez (28 December 1871 – 4 January 1931) was a Canadian politician from Quebec, Canada.
He was born in Trois-Rivières, Mauricie and became an accountant by trade. From 1923 to 1931 he was Mayor of Trois-Rivières.
Bettez ran as a Liberal candidate in the district of Three Rivers and St. Maurice in the 1925 federal election and won. He was re-elected in 1926 and 1930, then in 1931 died in office.