Pope Conon was the pope in the years 686 and 687, making him the 83rd successor to St. Peter. His date of birth remains unknown; he died on 21 September 687 while still in office (as is traditional for popes). Educated in Sicily, he was ordained to the priesthood in Rome. At the time of his election to the papacy he was the priest of the church of Santa Susanna in Rome.

The papal election of 686 was a contentious one, with the military and clergy supporting different candidates. Conon emerged as a compromise candidate, thanks to "his age, venerable appearance, and simple character" (according the The Catholic Encyclopedia). He was consecrated 21 October 686.

Pope Conon is mainly remembered for having received the Irish missionaries including St. Kilian, and consecrating Kilian a bishop. This was at a time when Ireland was sending forth missionaries to preach the gospel and was known as a country of saints and scholars. Pope Conon sent the newly-ordained Kilian to Franconia to preach the gospels to the German people, who he had already visited in Wurzburg.

Apparently it was not just the citizens and soldiers of Rome who liked this man, as Emperor Justinian II sent over some cash that was due to the pope that the Roman government hadn't been bothering to pay.