Bardibas (Maithili: बर्दिबास) is a municipal area and a town located in Mahottari District of Nepal that connects the Kathmandu Valley with Madhesh Province and extends the connection to Koshi Province.

Bardibas is located at the foothills of the Chure range at a location of 26.98°N 85.90°E. It comprises Chure region and Outer Terai. Bardibas Municipality straddles the Chure hill range in the Mahottari district. Ratu river, which originates from Chure hills lies east to Bardibas. It spreads to 18 kilometres (11 mi) east-west and 30 kilometres (19 mi) on north-south along the East-West highway.

The Chure region of Bardibas Municipality has emerged as a significant location for archaeological research and eco-tourism. Local authorities and conservation committees are actively working in the area to promote tourism while protecting archaeological heritage and vulture populations.

Total population of the municipality in 2011 Nepal census) had 66354 and total area of the municipality is 315.57 square kilometres (121.84 sq mi). In 2021 census the population of Bardibas increased to 68353. The municipality is divided into total 14 wards.

The municipality was established on 2 December 2014 merging the then four VDCs of Bardibas, Maisthan, Gauribas and Kisan Nagar.

In 2015, when Government of Nepal decided to dissolve the old thousands of VDCs and declare new 753 local level body then four more VDCs were merged with this municipality, those municipalities were: Hathilet, Pashupatinagar, Khayamara and Bijayalpura.

The municipality was established in 2014 merging the old VDCs, so area and population of the municipality were calculated according to the 2011 Nepal census, as follows:

Bardibas and the surrounding Mahottari district are deeply rooted in the Mithila culture.