Clemens Jonas (born 12 November 1980) is an Austrian former competitive figure skater.
A four-time national champion (1999, 2001–02, 2004), he represented Austria at five European and four World Championships.
In November 1998, Jonas qualified for the short program at the World Junior Championships in Zagreb, Croatia but did not advance further.
After winning his first national title, he was sent to the European Championships, held in Prague, Czech Republic in January 1999, but was eliminated in the qualifying round.
Jonas sustained a serious injury in a car accident in August 2002 and resumed training in mid-October.