The Diocese of Erfurt (Latin: Dioecesis Erfordiensis) is a Latin Church diocese of the Catholic church in Germany.

The diocese was created in 1973 as the apostolic administration of Erfurt-Meiningen, and was elevated in 1994 to the current diocese of Erfurt.

The diocese is a suffragan of the Archdiocese of Paderborn.

After the former bishop Joachim Wanke resigned in 2012 the diocese was without bishop until November 2014 when Ulrich Neymeyr took office.

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