Motter is a surname. Notable people with the surname include:
Adilson E. Motter (born 1974), Brazilian scientist Alex Motter (1913–1996), Canadian professional ice hockey player Dean Motter, Canadian illustrator, designer and writer Joshua Motter (1801–1875), American politician from Maryland Lewis M. Motter (1815–1910), American politician from Maryland Taylor Motter (born 1989), American professional baseball player
See also Jeni Mawter (born 1959), Australian children's author John C. Motter House, historic building in Frederick, Maryland William Motter Inge (1913–1973), American playwright and novelist