Juan-Claude Roos (born 12 September 1990) is a former South African rugby union player that usually played as a fly-half. He last played for the in the Pro14, having previously played for the Blue Bulls and the and the Canon Eagles in the Japanese Top League.
He was a member of the Pumas side that won the Vodacom Cup for the first time in 2015, beating 24–7 in the final. Roos appeared in all ten matches and contributed 118 points, finishing the tournament as the top scorer.
He joined the Port Elizabeth-based for the 2016 season, but after financial problems at the Kings, he made the move to Japan to join the Canon Eagles in January 2016.
He retired in 2018 to concentrate on his online personal training company, Activate Me.