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.

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.

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This article about a Roman Catholic diocese in Poland is a stub.