Arsenault is a French surname. Notable people with the surname include:
Adrien Arsenault (1889-1941), Canadian politician
Adrienne Arsenault (born 1967), Canadian journalist
Al Arsenault (born 1948), American musician
Angèle Arsenault (1943-2014), Canadian-Acadian musician
Aubin-Edmond Arsenault (1870-1968), Canadian politician
Bona Arsenault (1903-1993), Canadian politician
Damien Arsenault, Canadian politician
Daniel Arsenault, American photographer
Duncan Arsenault (born 1974), American musician
Frank Arsenault (1919-1974), American percussionist
Joseph F. H. Arsenault (1866-1946), Canadian politician
Joseph-Félix Arsenault (1865-1947), Canadian politician
Joseph-Octave Arsenault (1828-1897), Canadian politician
Mary-Anne Arsenault (born 1968), Canadian curler
Nina Arsenault (born 1974), Canadian transsexual writer
Nérée Arsenault (born 1911), Canadian politician
Pierre Arsenault (born 1963), American baseball coach
Prosper Arsenault (1894-1987), Canadian politician
Raymond Arsenault (born 1948), American historian
Samantha Arsenault (born 1981), American swimmer
Télésphore Arsenault (1872-1964), Canadian politician
Wilfred Arsenault (born 1953), Canadian politician