Billy Whizz is a fictional character featured in the British comic The Beano, first appearing in issue 1139, dated 16 May 1964, when it replaced The Country Cuzzins. Billy, the title character, is a boy who can run extraordinarily fast. His speed often causes chaos yet at the same time his ability can prove useful. He also has a younger brother called Alfie Whizz of similar appearance. Alfie is usually shown as a normal boy but occasionally he is shown to be just as fast as his brother.

In strips up until the 1980s, Billy lives in Whizztown rather than Beanotown like most of the other regular characters, however, this later changed and more recent strips place him in Beanotown.