Cohen is among a group of headliners including Sting, Joe Cocker, Green Day, Prince, Kraftwerk, ZZ Top and Deep Purple announced by new festival director Mathieu Jaton on Thursday.
Jaton took over the reins from festival founder Claude Nobs who died in January.
Cohen, 78, who is embarking on a European tour in June that includes dates in London, Paris, Belgium, Germany and Italy, is scheduled to open the Montreux festival on July 4th.
He will perform again the following night at the Auditorium Stravinski, one of the festival’s two main venues.
Organizers in February announced that Prince would be appearing in three dates July 13th, 14th and 15th.
The festival, held annually in the town overlooking Lake Geneva in the canton of Vaud, runs from from July 4th to 21st.
For full programme details check the Montreux Jazz Festival website.