First Lady or First Gentleman of Argentina (Spanish: Primera dama o Primer caballero de Argentina), also known as First Lady or First Gentleman of the Argentine Nation (Spanish: Primera dama o Primer caballero de la Nación Argentina), is a title typically held by the spouse of the president of Argentina, concurrent with the president's term in office.

Although the first lady's role has never been codified or officially defined, she figures prominently in the political and social life of Argentina.

The First Lady of Argentina is the hostess of the Quinta de Olivos, and on special occasions of the Casa Rosada.

[citation needed] The first lady or first gentleman is not an elected position, carries no official duties and brings no salary.

Some facts about the first ladies and gentlemen of Argentina: This list included all persons who served as first ladies or first gentlemen, regardless of whether they were married to the incumbent president or not, as well as persons who are considered to have acted as first lady by the official Casa Rosada website.