A Regierungsbezirk (German pronunciation: [ʁeˈɡiːʁʊŋsbəˌtsɪʁk] ^ⓘ, literally 'governmental district') is a type of administrative division in Germany. Currently, four of sixteen Länder (states of Germany) are split into Regierungsbezirke. Beneath these are rural and urban districts.

Regierungsbezirke (plural, pronounced [ʁeˈɡiːʁʊŋsbəˌtsɪʁkə] ^ⓘ) serve as regional mid-level local government units in four of Germany's sixteen states: Baden-Württemberg, Bavaria, Hesse and North Rhine-Westphalia. Each of the nineteen Regierungsbezirke features a non-legislative governing body called a Regierungspräsidium (governing presidium) or Bezirksregierung (district government) headed by a Regierungspräsident (governing president), concerned mostly with administrative decisions on a local level for districts within its jurisdiction. Saxony has Direktionsbezirke (directorate districts) with more responsibilities shifted from the state parliament.

Regierungsbezirk is a German term variously translated into English as "governmental district", "administrative district" or "province", with the first two being the closest literal translations.

The first Regierungsbezirke were established in the Kingdom of Bavaria and the Kingdom of Prussia in 1808. During the course of the Prussian reforms between 1808 and 1816, Prussia subdivided its provinces into 25 Regierungsbezirke, eventually featuring 37 such districts within 12 provinces. By 1871, at the time of German unification, the concept of Regierungsbezirke had been adopted by most States of the German Empire. Similar entities were initially established in other states under different names, including Kreishauptmannschaft (district captainship) in Saxony, Kreis (district) in Bavaria and Württemberg (not to be confused with the present-day Kreis or Landkreis districts), and province in Hesse. The names of these equivalent administrative divisions were standardized to Regierungsbezirk in Nazi Germany, but after World War II these naming reforms were reverted.

The Regierungsbezirke in the state of North Rhine-Westphalia in modern Germany are in direct continuation of those created in the Prussian Rhine and Westphalia provinces in 1816. Regierungsbezirke never existed in Bremen, Hamburg, Schleswig-Holstein, and Saarland.

In 1946, Lower Saxony was founded by the merger of the three former Free States of Brunswick, Oldenburg, Schaumburg-Lippe, and the former Prussian province of Hanover. Brunswick and Oldenburg became Verwaltungsbezirke [fɛɐ̯ˈvaltʊŋsbəˌt͡sɪʁkə] ^ⓘ(roughly administrative regions of extended competence) alongside six less autonomous Prussian-style Regierungsbezirke comprising the Province of Hanover and Schaumburg-Lippe. These differences in autonomy and size were levelled on 1 January 1978, when four Regierungsbezirke replaced the two Verwaltungsbezirke and the six Regierungsbezirke: Brunswick and Oldenburg, Aurich, Hanover (remaining mostly the same), Hildesheim, Lüneburg, Osnabrück and Stade.

Following the reunification of Germany in 1990, the territory of the former East Germany was organized into six re-established new states, including a reunified Berlin. Saxony and Saxony-Anhalt established three Regierungsbezirke each, while the other new states didn't implement them.

During the 2000s, four German states discontinued the use of Regierungsbezirke. On 1 January 2000, Rhineland-Palatinate disbanded its three Regierungsbezirke of Koblenz, Rheinhessen-Pfalz and Trier. The employees and assets of the three Bezirksregierungen (German pronunciation: [bəˈt͡sɪʁksʁeˌɡiːʁʊŋən] ^ⓘ) were converted into three public authorities responsible for the whole state, each covering a part of the former responsibilities of the Bezirksregierung (German: [bəˈt͡sɪʁksʁeˌɡiːʁʊŋ] ^ⓘ).