Hillclimbing (also known as hill climbing, speed hillclimbing or speed hill climbing) is a branch of motorsport in which drivers compete against the clock to complete an uphill course.

It is one of the oldest forms of motorsport, since the first known hillclimb at La Turbie near Nice, France took place as long ago as 31 January 1897. The hillclimb held at Shelsley Walsh, in Worcestershire, England is the world's oldest continuously staged motorsport event still staged on its original course, having been first run in 1905. The longest permanent hillclimb in the UK is at Harewood in West Yorkshire, with a track length of 1448 metres.

A very different kind of hillclimbing is done with offroad motorcycles going straight up extremely steep hills. The winner is the one which could climb the highest, or in the case more than one made it to the top, the fastest. This kind of motorsport, which requires skill as well as bravery, has a long tradition in the USA and has been popular in France and Austria since the 1980s. The Austrian event in Rachau focused on crowd entertainment, and inspired many similar events.^{[citation needed]}