Halphen is a surname. Notable people with the surname include:
- Éric Halphen (born 1959), French judge
- Eugène Halphen (1820-1912), French historian, poet and book editor.
- Fernand Halphen (1872–1917), French composer
- Georges Henri Halphen (1844–1889), French mathematician
- Gustave Halphen (d. 1872), French diplomat.
- Louis Halphen (1880–1950), French medieval-historian
- Baroness Noémie de Rothschild (1888-1968), born Noémie Halphen, French philanthropist
|This page lists people with the surname Halphen. If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.|