The Diocese of Gliwice (Latin: Glivicen(sis)) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Poland.

Its episcopal see is located in the city of Gliwice.

The Diocese of Gliwice is a suffragan diocese in the ecclesiastical province of the Archdiocese of Katowice.

As of 2021[update], about 89% of the population in the territory of the diocese is self-described Catholic, however only 39% are practising Catholics.

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