Mountain Biking UK (often shortened to MBUK) is a British mountain biking magazine. It is published by Future Publishing and is currently the UK's best-selling mountain bike magazine^{[citation needed]}, with a circulation of 38,482 (ABC: Jan - Dec 2010).^{[citation needed]} MBUK was established in 1988 by Tym Manley who remained editor at large until 2009. The current editor is Danny Walter. There are currently 13 issues a year, and the magazine has a policy of including 'covermount' gifts such as stickers, gloves, socks and DVDs.

MBUK covers all mountain biking disciplines; trials, downhill, cross-country, dirt jumping, free-riding and 4X. Future Publishing's readership demographics research has indicated the magazine's readership to be 95% male, with an average age of 24.5.^{[citation needed]}

Since 1989 MBUK has carried the ovine-based cartoon strip, 'Mint Sauce', the tales of a mountain-biking sheep and his friends.

In July 2006 MBUK released its 200th edition. To mark the occasion, Cedric Gracia (leading French downhill and 4X racer) was guest editor.