Beiser is a surname. Notable people with the surname include:
Arthur Beiser, an American physicist Brendan Beiser (born 1970), Canadian actor Daniel V. Beiser, Democratic member of the Illinois House of Representatives Edward Beiser (1942–2009), Dean at Brown University, political scientist and a constitutional scholar. Frederick C. Beiser (born 1949), one of the leading scholars of German Idealism Maya Beiser (born 1963), American cellist Morton Beiser (born 1936), Canadian professor, psychiatrist, and epidemiologist Tim Beiser (born 1959), literary pseudonym of American-Canadian author and journalist J. Timothy Hunt Trude Beiser (born 1927), Austrian former alpine skier Vince Beiser (born 1965), American-Canadian journalist
See also Ed Beisser (1919–2000), American basketball player