Jeux sans frontières (pronounced [ʒø sɑ̃ fʁɔ̃tjɛʁ]; "Games Without Borders" in French) is a Europe-wide television game show, based on the French programme Intervilles which was first broadcast in 1962. It was broadcast from 1965 to 1999 under the auspices of the European Broadcasting Union (EBU), which owned the format.

In non French-speaking countries, the show had alternative titles. It is also widely known as It's a Knockout, the title of the BBC's domestic version and national selection for the programme.