Tri Yann is a French band from Nantes who play folk rock music drawing on traditional Breton folk ballads.
The band was founded in 1969 by Jean Chocun, Jean-Paul Corbineau and Jean-Louis Jossic - all of whom remained members - hence the suggested name of Tri Yann an Naoned, Jean and Yann being respectively the French and Breton versions of the name John. They presented their final concerts in September 2021, a celebration of their 50th anniversary as a group, which was delayed by the worldwide corona virus pandemic. In December 2022, co-founder Jean-Paul Corbineau died following a long struggle with leukemia.
As the best known "Celtic" band in France, Tri Yann are one of the longest-standing Breton music groups surviving from the folk rock revival of the 1970s. The group are famous for the outlandish costumes worn on stage.
Among their best-known songs are La Jument de Michao and Dans les prisons de Nantes. Live performances usually include the Breton national anthem Bro Gozh ma Zadoù which has the same tune to the Welsh National Anthem.