The First Gentleman is a 1948 British historical drama film directed by Alberto Cavalcanti, and starring Jean-Pierre Aumont, Joan Hopkins, and Cecil Parker. It portrays the relationships and marriage of George, Prince Regent and his tense dealings with other members of his family such as his only child Princess Charlotte and his younger brother Frederick, Duke of York. It was also released as Affairs of a Rogue.The film is based on a play, The First Gentleman by Norman Ginsbury, which was staged in London in 1945, starring Robert Morley as the Prince Regent and Wendy Hiller as Princess Charlotte.

Alberto de Almeida Cavalcanti was a Brazilian-born film director and producer. He was often credited under the single name "Cavalcanti".