Jaroslav "Jarek" Janiš (born 8 July 1983) is a Czech auto racing driver. In 2006 he is racing in the FIA GT Championship. He has taken three pole positions Brno, Dijon and the Hungaroring turning two of them into victories, teamed with Sascha Bert and occasionally former Formula One driver Andrea Montermini. Prior to 2006 he had done six GT Championship races, four of them in a Ferrari 360 Modena for the Menx team in 2003, taking a total of 17.5 points.

This biography of a living person relies on a single source. (April 2012)

He was born in Olomouc, Czechoslovakia, and has a record in single-seater competition. Jarek finished 7th in the German Formula Ford series in 1999, and was 2nd in that series (and 4th in the European Formula Ford series) a year later. By the end of 2001 he had a chance to fill in for countryman Tomáš Enge in the final round of the International Formula 3000 series at Monza. He finished 3rd overall in the European series in 2002,^[1] and raced the international series in 2003. He made his Champ Car debut for Dale Coyne Racing in the penultimate race of 2004. He did some Formula Nippon in Japan in 2005.

He is a former race driver for A1 Team Czech Republic in the A1 Grand Prix series.

He is the older brother of racing driver Erik Janiš.^[2]