The Union of the Democratic Centre (Spanish: Unión del Centro Democrático, UCD[4] or UCeDé) is a centre-right[5] to right-wing[6][7] conservative and economically liberal political party in Argentina.

[5] Alsogaray, who had been an opponent of traditional Peronism, became the administration's chief policy advisor[4][9] and his daughter María Julia secretary of natural resources and the main responsible for the privatization of the public telecommunications company ENTel.

In 2007, UCeDe participated in the Union PRO centre-right alliance to dispute the governorship of the province of Buenos Aires, supporting the opposition formula Francisco de Narváez-Jorge Macri.

In March 2015, the UCeDé of the City of Buenos Aires established an electoral alliance with the Republican Proposal (PRO) and supported Horacio Rodríguez Larreta for Head of Government in the election of that same year.

For the 2019 presidential elections, he managed to reshape 5 districts necessary to obtain national status and decided to join the Frente Despertar, led by economist José Luis Espert, who finished in the last position with 1.5% of the votes.