Amacher is a surname of German origin. Notable people with the surname include: Maryanne Amacher (1938–2009), American composer and installation artist Ryan C. Amacher (1945–2016), American economics professor, dean, and university president Rhein D. Amacher (1990-), German-American former collegiate NCAA Division I athlete for the Oregon Ducks from 2008 to 2010. References Surnames of German origin