Petrus Kenicius (1555 – 3 February 1636) was Archbishop of Uppsala in the Church of Sweden from 1609 to his death.

In 1589 he was put in prison by King John III of Sweden, together with, among others, Nicolaus Olai Bothniensis who would become archbishop in 1599–1600.

The reason were disagreements with the King's non-Lutheran liturgy.

After being released, he was at the Uppsala Synod in 1593 as one of the twelve assessors.

He was considered a fine and hardworking person who dedicated much time and care to the University in Uppsala and the Church.