Madec is a surname, and may refer to:
Abbot Jean-François Madec (1879–1936), pioneer of social action and ardent defender of the Breton culture Joseph Madec (1923–2013), French bishop of Toulon Philippe Madec (born 1954), French architect and urbanist René-Marie Madec (1736–1784), Breton sailor and adventurer Roger Madec (1950–2024), French politician