Fra Didak Buntić was a Croatian friar and educator from Herzegovina.
Buntic was born on October 9, 1871. The next day he was baptized as Franjo Buntić. He entered the Franciscan order in 1888 (taking the name Didak) and finished seminary in 1894.
The next year he began teaching at the gymnasium in Široki Brijeg. During his time in Široki Brijeg, the Church of the Assumption of the Blessed Virgin Mary was built. He became the school's principal in 1911 and began to encourage the education of children from neighbouring villages. In 1919 he helped open a school in Zagreb to educate students from Herzegovina. That same year he became the head of the Franciscan Province of the Assumption of the Blessed Virgin Mary and moved to Mostar.
In 1920, he was elected to the Constitutional Assembly of the Kingdom of Serbs, Croats and Slovenes as a member of the Croatian Popular Party.
He died in Čitluk in 1922 of a heart attack.