Braunschweig (German Regierungsbezirk Braunschweig) was one of the eight former administrative regions (Regierungsbezirke) of Lower Saxony, Germany.

The region covers roughly the area of the former state of Brunswick-Lüneburg.

At the end of 2004, all Regierungsbezirke of Lower Saxony were dissolved.

'Verwaltungsbezirk Oldenburg' was dissolved in June 1977 and became part of Regierungsbezirk Weser-Ems.

The region of Braunschweig was (2005/6) the most R&D-intensive area in the whole European Economic Area[clarification needed] investing 7.1% of its GDP for research & technology.