Which comedian was the first woman to headline a Las Vegas casino showroom?

Phyllis Diller was the first woman to headline a Las Vegas casino showroom.

Diller’s breakthrough came after appearances on television and in nightclubs, where her distinctive laugh, self-deprecating persona, and jokes about domestic life made her one of the most recognizable female comedians of the 1960s. Her Las Vegas achievement marked an important step for women in a live-entertainment market that had traditionally centered male headliners.

Diller later appeared in films, television programs, and comedy specials, and she also became known for her flamboyant gowns and exaggerated stage persona. The claim concerns headline status in a casino showroom, not the first woman to perform in Las Vegas generally; women comedians had appeared in the city before Diller’s milestone.