Roman Kreuziger (Czech pronunciation: [ˈroman ˈkrojtsɪɡr̩]; born 6 May 1986) is a Czech former professional road bicycle racer, who rode professionally between 2006 and 2021 for six different teams. His father, Roman Kreuziger Sr., was also a bicycle racer who won the Tour of Austria in 1991 and the Cyclocross Junior World Championships in 1983.

Kreuziger competed as an all-rounder, with climbing and time trial abilities, becoming a contender for the General classification of stage races. He was also considered one of the biggest talents of the sport after winning the junior road race at the 2004 UCI Road World Championships and the 2008 Tour de Suisse at the age of 22. The next year, he won the 2009 Tour de Romandie and in 2013, he was the victor of the Amstel Gold Race.

Since his retirement, Kreuziger now works as a directeur sportif for UCI WorldTeam Team Bahrain Victorious.