Marxer is a surname. Notable people with the surname include:
Josef Marxer (politician, born 1889) (1889–1972), Liechtenstein politician Ludwig Marxer (veterinarian) (1855–1946), Liechtenstein veterinarian and politician Ludwig Marxer (1897–1962), Liechtenstein lawyer and Deputy Prime Minister of Liechtenstein Egon Marxer (1920–1999), Liechtenstein politician Peter Marxer (1933–2016), Liechtenstein lawyer and politician Anne-Flore Marxer (born 1984), Swiss snowboarder Anton Marxer (1880-?), German veterinarian, chemist and bacteriologist Gunilla Marxer-Kranz (born 1972), Liechtenstein politician Herbert Marxer (born 1952), Liechtenstein alpine skier Gabriel Marxer (born 1960), Liechtenstein politician Alexander Marxer (born 1964), Liechtenstein politician Manuela Marxer (born 1965), Liechtenstein athlete Marlies Amann-Marxer (born 1952), Liechtenstein politician Melitta Marxer (1923–2015), Liechtenstein activist Marcy Marxer (born 1956), American Roots Musician, actor, GRAMMY Winner