The Bishopric of Pomesania (German: Bistum Pomesanien; Polish: Diecezja pomezańska) was a Catholic diocese in the Prussian regions of Pomesania and Pogesania, in modern northern Poland until the 16th century, then shortly a Lutheran diocese, and became a Latin titular see.

So the temporality of Pomesania's bishop did not develop the status of a prince-bishopric and was ruled as part of Teutonic Prussia.

In 1454, the region was incorporated by King Casimir IV Jagiellon into the Kingdom of Poland upon the request of the anti-Teutonic Prussian Confederation.

[2] The Bishop and canons of Pomesania pledged allegiance to the Polish King during the incorporation in March 1454 in Kraków.

It has had the following incumbent(s), so far of the fitting Episcopal (lowest) rank : Beginning in 1523 during the Protestant Reformation, the diocese was effectively administered by Lutheran bishops.