JoAnne L. Buth (born May 23, 1954) is a retired Canadian politician.
She was appointed to the Canadian Senate by Governor General David Johnston on the advice of Prime Minister Stephen Harper on January 6, 2012, replacing the retired Sharon Carstairs.
[1][2] She retired from the Senate on August 10, 2014[3] in order to become CEO of the Canadian International Grains Institute, a group that promotes Canadian field crops.
[5] Buth's background in agriculture includes stints as a research and development manager with DowElanco Canada and as an information officer for the federal agriculture department's research station in Winnipeg.
More recently she worked in Carman, Manitoba as a manager and weed management specialist in Manitoba's provincial ministry of agriculture.