National Democratic Union (Brazil)

National Democratic Union
União Democrática Nacional
PresidentSee list below
Secretary-GeneralSee list below
FounderCarlos Lacerda
FoundedApril 7, 1945 (1945-04-07)
DissolvedOctober 27, 1965 (1965-10-27)
IdeologyConservatism
Classical liberalism
Political positionCentre-right
ColoursBlue, White, & Red

The National Democratic Union (Portuguese: União Democrática Nacional, UDN) was a political party that existed in Brazil between 1945 and 1965. It was ideologically aligned with conservatism. During most of its existence, it was the country's second-strongest party. Its symbol was an Olympic torch and its motto was "The price of freedom is eternal vigilance".