Groucho glasses, also known as the beaglepuss, are a humorous novelty disguise that caricature comedian Groucho Marx. They typically consist of black horn-rimmed glasses with attached eyebrows, large plastic nose, bushy moustache, and occasionally with an attached plastic cigar. Considered one of the most iconic and widely used of all novelty items Groucho glasses were first marketed in the early 1940s and are instantly recognizable to people throughout the world. Groucho glasses today are often used as a shorthand for slapstick.

Julius Henry "Groucho" Marx (October 2, 1890 – August 19, 1977) was an American comedian and film and television star. He is known as a master of quick wit and widely considered one of the best comedians of the modern era. His rapid-fire, often impromptu delivery of innuendo-laden patter earned him many admirers and imitators. He made 13 feature films with his siblings the Marx Brothers, of whom he was the third-born. He also had a successful solo career, most notably as the host of the radio and television game show You Bet Your Life. His distinctive appearance, carried over from his days in vaudeville, included quirks such as an exaggerated stooped posture, glasses, cigar, and a thick greasepaint mustache and eyebrows. These exaggerated features resulted in the creation of one of the world's most ubiquitous and recognizable novelty disguises, known as "Groucho glasses", a one-piece mask consisting of horn-rimmed glasses, large plastic nose, bushy eyebrows and mustache.

In a 1950 radio episode of You Bet Your Life, Groucho stated that he was born in a room above a butcher's shop on 78th Street in New York City.