The sport gets its name from the place where it was invented, Rugby School in Warwickshire, England.
In 1816 a pupil called William Webb Ellis got a bit bored during a match of football and decided that picking up the ball would make things more interesting.
Although the game has come a long way since, even splitting into two codes; Rugby Union and Rugby League, that's where it started.
One of the most important rules of the sport is that the ball can only be passed backwards.