François "Francis" Xavier Matthieu (April 2, 1818 – February 4, 1914) was a French Canadian pioneer settler of the Oregon Country. He was educated in American values by a radical schoolteacher. Matthieu became involved in the 1837–1838 armed rebellion against British rule in Canada, for which he was forced to flee his native Quebec for safety in the United States, where he worked as a carpenter and a fur trader.