Manuel Fal Conde, 1st Duke of Quintillo (1894–1975) was a Spanish Catholic activist and a Carlist politician.
He is recognized as a leading figure in the history of Carlism, serving as its political leader for over 20 years (1934–1955) and heading the movement during one of its most turbulent periods.
Initially he led the belligerent faction pressing anti-Republican insurgency; during the Spanish Civil War he joined the Nationalists; later on he championed anti-Francoist strategy.