Marco Bui

{{short description|Italian cyclist}}

Marco Bui (born 17 October 1977) is an Italian professional mountain biker. Bui won the 2001 UCI Mountain Bike World Cup in the Cross-country time-trial. During that season he recorded two wins - one at Napa Valley and one at Houffalize.{{cite web|url=http://autobus.cyclingnews.com/results/2001/apr01/Napa/resultsa.shtml |title=Napa Valley - MTB World Cup #1 |publisher=Autobus.cyclingnews.com |date= |accessdate=2015-08-10}}{{cite web |url=http://velonews.competitor.com/2001/05/mtb/bui-fullana-fastest-qualifiers-for-houffalize-world-cup-2_250775 |title=Bui, Fullana Fastest Qualifiers For Houffalize World Cup - VeloNews.com |publisher=Velonews.competitor.com |date=2012-10-11 |accessdate=2015-08-10 |archive-url=https://web.archive.org/web/20160304030931/http://velonews.competitor.com/2001/05/mtb/bui-fullana-fastest-qualifiers-for-houffalize-world-cup-2_250775 |archive-date=2016-03-04 |url-status=dead }}

Bui also represented Italy at the Olympics.{{cite web|author= |url=http://www.cyclingnews.com/news/bui-bounces-back-in-2005/ |title=Bui bounces back in 2005 |publisher=Cyclingnews.com |date=2009-04-22 |accessdate=2015-08-10}}{{cite Sports-Reference |url=https://www.sports-reference.com/olympics/athletes/bu/marco-bui-1.html |archive-url=https://web.archive.org/web/20200418012506/https://www.sports-reference.com/olympics/athletes/bu/marco-bui-1.html |url-status=dead |archive-date=18 April 2020 |title=Marco Bui Olympic Results |accessdate=8 March 2020}}