An American in Buenos Aires (Spanish: Una Americana en Buenos Aires) is a 1961 Argentine film directed by George Cahan. The film was based on the story by Antonio de Lara. The film starred Mamie Van Doren and Jean-Pierre Aumont. It is also known by the alternative title of The Blonde from Buenos Aires.

The movie was Van Doren's last film for three years. She didn't return to the screen until 1964, playing the lead role in The Candidate.