The Diocese of Rottenburg-Stuttgart is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Germany.

It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Freiburg in Baden-Württemberg, Bundesland.

It covers the same territory of the former Kingdom of Wurttemberg.

(all Roman Rite)[2] The Diocese of Rottenburg-Stuttgart is located in the Württemberg part of the German State of Baden-Württemberg.

As per 2014, it pastorally served 1,872,849 Catholics (37.0% of 5,068,000 total) on 19,500 km2 in 1,096 parishes and 40 missions with 1,016 priests (829 diocesan, 187 religious), 283 deacons, 3,368 lay religious (228 brothers, 3,140 sisters) and 26 seminarians.