Germaine Hélène Irène Lefebvre (French: [ʒɛʀmɛnelɛniʀɛnləfɛvʀ], 6 January 1928 – 17 March 1990), known by her stage name Capucine (French: [kapysin]), was a French fashion model and actress known for her comedic roles in The Pink Panther (1963) and What's New Pussycat? (1965). She appeared in 36 films and 17 television productions between 1948 and 1990.

Capucine was born Germaine Hélène Irène Lefebvre on 6 January 1928 in Saint-Raphaël, Var, France. She often misstated the date of her birth by claiming that she was born in 1931 or 1933, and most sources indicate those years. She attended school in Saumur, France, and earned a Bachelor of Arts degree in Foreign Languages.

In 1945, at age 17, while riding in a carriage in Paris, Lefebvre was noticed by a commercial photographer. Adopting the French name of a flower, "Capucine" (nasturtium, Tropaeolum), she became a fashion model, working for the fashion houses Givenchy and Christian Dior.

Capucine met Audrey Hepburn while modeling for Givenchy in Paris. They remained close friends for the rest of Capucine's life.

Capucine made her film debut in Jean Cocteau's The Eagle with Two Heads (1948), in a small, unbilled role. She also appeared in Jacques Becker's Rendezvous in July (1949) and Robert Dhéry's Crazy Show (1949).

She was in Marc-Gilbert Sauvajon's My Friend Sainfoin (1950) and Dhéry's Bernard and the Lion (1951).

After a break of a few years, Capucine appeared in Mademoiselle from Paris (1955) and Frou-Frou (1955).

In 1957, film producer Charles K. Feldman spotted Capucine while she was modeling in New York City. Feldman put her under contract at $150 a week. He brought her to Hollywood to learn English and study acting under Gregory Ratoff. She took the stage name "Capucine", saying, "Two names are interesting and I hope one is interesting."