The Bolivian Democratic Union (Spanish: Unión Democrática Boliviana, UDB) was a right-wing political party in Bolivia founded by Carlos Valdez Molina and Nidio Calavi Castellanos in 1978.[1]
In 1979 it allied with the Bolivian Union Party and its candidate Walter Gonzáles Valda.[2]
It disbanded following the Bolivian coup d'état on 17 July 1980.