Rohan Dennis is a world champion in which sport?

Rohan Dennis (born 28 May 1990) is an Australian professional road racing cyclist, who currently rides for UCI WorldTeam Team Ineos. Dennis was born, raised, and resides in Adelaide, South Australia, Australia. He is the 2019 "Union Cycliste Internationale" (UCI) men's individual time trial world champion.

Dennis began his career by focusing on the track, and was part of the Australian team that took the silver medals in the team pursuit at the 2012 Summer Olympics.

He joined Garmin–Sharp for the 2013 season, and made his debut Tour de France, pulling out of the race before Stage 9.

In August 2014, Dennis made a rare mid-season transfer to the BMC Racing Team. He went on to win the World team time trial championships with his new team.

On 8 February 2015, he set a new hour record of 52.491 km, beating Matthias Brändle's record by over 600 metres. The record stood until 2 May 2015, when it was broken by Dowsett. Dennis was selected to ride the 2015 Tour de France as part of the BMC Racing Team squad supporting Tejay van Garderen. He won stage one's individual time trial, clocking an average speed of 55.446 km/h (34.5 mph). With this performance, he established a new record average speed for an individual time trial at the Tour de France.

At the 2018 Giro d'Italia he took the pink leaders jersey on the second stage and became only the third Australian to wear the leader's jersey in all three Grand Tours, after Bradley McGee and Cadel Evans.