Amundson is a Swedish patronymic surname meaning "son of Amund". Notable people with this surname include the following:
People Karl Amundson (1873–1938), Swedish ballooner, military attaché and major general Kristen J. Amundson, American politician Lou Amundson, American basketball player Monti Amundson, American guitarist Neal Amundson, American chemical engineer and professor Norman E. Amundson, Canadian professor Robert Amundson (1938–2024), American judge
See also Amundsen (surname)