Allan Ernest Pietz (18 June 1925 – 24 April 2021) was a Progressive Conservative party member of the House of Commons of Canada.
After several unsuccessful attempts to enter national politics at the Welland riding in the 1958, 1962 and 1979 federal elections, he won the riding in the 1984 federal election, defeating Liberal incumbent Gilbert Parent.
Pietz only served one term, during the 33rd Canadian Parliament, as he was defeated in the 1988 federal election at the reorganized Welland—St.
He made a political comeback in 1991 when he was again elected as a Niagara Regional Councillor for Welland.
Shortly afterward, he ran for the Chairmanship of the Niagara Regional Council, but was defeated by Brian Merritt.