Selmer is a surname. Notable people with the surname include:
Christian August Selmer (1816–1889), Norwegian lawyer, magistrate and politician Elisabeth Schweigaard Selmer (1923–2009), Norwegian judge and politician Ernst Sejersted Selmer (1920–2006), Norwegian mathematician Ernst W. Selmer (1890–1971), Norwegian philologist and phonetician
Knut Selmer (1924–2009), Norwegian legal scholar Odd Selmer (born 1930), Norwegian journalist, novelist and playwright Wenche Selmer (1920–1998), Norwegian architect
See also Ågot Gjems Selmer or Gjems-Selmer (1858–1926), Norwegian actress, writer, and lecturer