Riley Fitzsimmons (born 27 July 1996) is an Australian sprint canoeist.
He competed in the men's K-4 1000 metres at the 2016 Summer Olympics in Rio de Janeiro, and in both the men's K-2 1000 metres and men's K-4 500 metres at the 2020 Summer Olympics in Tokyo. He teamed up with Murray Stewart, Lachlan Tame and Jordan Wood in the Men's K-4 500m sprint. The team did well in the heats clocking 1:22.662, came second in the semi-final but couldn't repeat their best time in the final coming sixth behind the eventual winner, Germany.
Fitzsimmons began kayaking as a mean of improving his surf ski performance. He has cited Australian Olympic bronze medalist Lachlan Tame as his greatest influence.