Mark Ian Macleod Beaumont is a British long-distance cyclist, broadcaster and author. He holds the record for cycling round the world, completing his 18,000-mile (29,000 km) route on 18 September 2017, having taken less than 79 days. On 18 February 2010 Beaumont completed a quest to cycle the Americas, cycling from Anchorage, Alaska, US to Ushuaia in Southern Argentina, for a BBC Television series.

The Guinness World Record (GWR) for fastest circumnavigation of the globe by bicycle is awarded for completing a continuous journey around the globe by bicycle and other means, consisting of a minimum 29,000 km in total distance cycled.The supported record is held by Mark Beaumont of Scotland, who completed the route accompanied by a motorized support vehicle in 78 days 14 hours, and 40 minutes. The unsupported record is held by Jenny Graham of Scotland. Graham completed her attempt in October 2018 in a total of 124 days. She cycled the route solo and totally unsupported, often sleeping rough in drainage ditches or behind bushes.