Abelin is a surname, and may refer to:
Jean-Pierre Abelin (born 1950), French politician Johann Philipp Abelin (died 1634), German historian Ernst Abelin (born 1933), Swiss psychoanalyst and founder of the theory of early triangulation Isaak Abelin (1883−1965), Swiss physiologist Ludvig Abelin Schou (1838–1867), Danish painter Pierre Abelin (1909–1977), French politician, parliamentarian and government minister