| Jurisdiction: | Diocese |
| Elbląg | |
| Latin: | Dioecesis Elbingensis |
| Local: | Diecezja Elbląska |
| Country: | Poland |
| Province: | Warmia |
| Denomination: | Catholic Church |
| Sui Iuris Church: | Latin Church |
| Rite: | Roman Rite |
| Area Km2: | 9,495 |
| Population: | 453,200 |
| Population As Of: | 2021 |
| Catholics: | 441,200 |
| Catholics Percent: | 97,4 |
| Metro Archbishop: | Józef Górzyński |
| Auxiliary Bishops: | Wojciech Skibicki |
| Emeritus Bishops: | Józef Wysocki |
| Map: | Mapa diecezji.jpg |
| Map Size: | 250px |
| Website: | Website of the Diocese |
The Diocese of Elbląg (Latin: Elbingen(sis)) is a Latin Church ecclesiastical territory or diocese located in the city of Elbląg in Poland. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Warmia.
The diocese was established on March 25, 1992, as the Diocese of Elbląg from the Diocese of Chelmno, Diocese of Gdańsk and Diocese of Warmia. According to the Catholic Church statistics, 28.4% of the population went to church once a week in 2013 which was the lowest rank ever since 1980.