Kari Tiainen (born 26 August 1966 in Riihimäki) is a Finnish former professional enduro rider.
[2] Tiainen has also participated in several national championships, becoming a four-time German and two-time Finnish and Spanish champion.
In 1999, he also drove for Finland in the Race of Champions, alongside Tommi Mäkinen and JJ Lehto, and the team won the Nations' Cup.
Originally a motocross rider, Tiainen switched to enduro in 1989 and finished fourth in the European championship.
Tiainen then moved to the biggest 500 cc class, winning the title with Husqvarna in 1992, 1994, 1995 and 1997, and with KTM in 2000.