Biel/Bienne District is a constitutional district (Amtsbezirk) in the canton of Bern in Switzerland with its seat Biel/Bienne. It is bi-lingual (41% French and 59% German) and includes two municipalities in an area of 25 km²:

Biel District Amtsbezirk Biel District de Bienne
District
Coordinates: 47°08′00″N 7°14′00″E / 47.1333°N 7.23333°E / 47.1333; 7.23333
Country	Switzerland
Canton	Bern
Capital	Biel/Bienne
Area
• Total	25 km2 (10 sq mi)
Population  (2007)
• Total	51,707
• Density	2,100/km2 (5,400/sq mi)
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Municipalities	2

From 1 January 2010, the district lost its administrative power while being replaced by the administrative district of Biel/Bienne. Since 2010, it remains a fully recognised district under the law and the Constitution (Art.3 al.2) of the canton of Bern.