Ivan Tásler (born July 16, 1979 in Prešov, Slovakia) is a Slovak singer, guitarist, composer, and producer.

His career is closely connected with the band IMT Smile. The history of IMT Smile started in 1992 when it was founded by brothers Ivan and Miro Táslers whose initial letters have given the name to the band. Later, the band has changed the name several times (Epitath, Ruka) and finally, in 1995, it was renamed to IMT Smile again. In that time, nine musicians were a part of the group.