Billig is a surname. Notable people with the surname include:
Andy Billig (born 1968), American politician Etel Billig (1932–2012), American actress and director Frederick S. Billig (1933–2006), American aerospace engineer Fritz Billig (1902–1986), Austrian philatelist Hannah Billig (1901–1987), British physician Janet Billig Rich (born 1967), American talent manager and producer Michael Billig (born 1947), British academic Simon Billig, British actor