Courtelary District is located in Switzerland and is one of the three French-speaking districts of the Bernese Jura, along with La Neuveville and Moutier. The district is located in the canton of Bern with the seat being Courtelary. It had a population of about 22,224 in 2004. The three districts lost their administrative power and were merged on 1 January 2010 to form the new district of Jura Bernois with the capital at Courtelary.
Since 2010, it remains a fully recognised district under the law and the Constitution (Art.3 al.2) of the Canton of Berne.
{|class ="wikitable sortable"
! Municipality
! Population (2004)
! Area (km²)
|-
| Corgémont || align="right" | 1532 || align="right" | 17.60
|-
| Cormoret || align="right" | 528 || align="right" | 13.43
|-
| Cortébert || align="right" | 737 || align="right" | 14.75
|-
| Courtelary || align="right" | 1163 || align="right" | 22.24
|-
| La Ferrière || align="right" | 550 || align="right" | 14.23
|-
| La Heutte || align="right" | 481 || align="right" | 8.00
|-
| Mont-Tramelan || align="right" | 133 || align="right" | 4.64
|-
| Orvin || align="right" | 1207 || align="right" | 21.43
|-
| Péry || align="right" | 1361 || align="right" | 15.57
|-
| Plagne || align="right" | 391 || align="right" | 7.55
|-
| Renan || align="right" | 790 || align="right" | 12.62
|-
| Romont || align="right" | 213 || align="right" | 7.07
|-
| Saint-Imier || align="right" | 4756 || align="right" | 20.86
|-
| Sonceboz-Sombeval || align="right" | 1684 || align="right" | 15.03
|-
| Sonvilier || align="right" | 1090 || align="right" | 23.78
|-
| Tramelan || align="right" | 4263 || align="right" | 24.88
|-
| Vauffelin || align="right" | 431 || align="right" | 5.92
|-
| Villeret || align="right" | 914 || align="right" | 16.22
|}