Bigu is a former village development committee that is now a ward-7 rural municipality in Dolakha District in Bagmati Province of northeastern Nepal. At the 1991 Nepal census, Bigu had a population of 1,736 people living in 361 individual households.

The epicenter of the May 2015 Nepal earthquake was located in Bigu.

At the time of the 2011 Nepal census, Bigu Rural Municipality had a population of 18,592. Of these, 42.6% spoke Nepali, 28.8% Tamang, 18.5% Thangmi, 8.0% Sherpa, 1.3% Magar, 0.2% Maithili, 0.2% Newar, 0.1% Bhojpuri, 0.1% Gurung and 0.1% other languages as their first language.

In terms of ethnicity/caste, 29.1% were Tamang, 21.7% Chhetri, 19.0% Thami, 8.1% Sherpa, 5.8% Newar, 4.7% Kami, 3.0% Magar, 2.7% Hill Brahmin, 1.9% Damai/Dholi, 1.4% Gharti/Bhujel, 0.9% Sarki, 0.7% Gurung, 0.4% Thakuri, 0.1% Hajjam/Thakur, 0.1% Koiri/Kushwaha, 0.1% Sunuwar and 0.3% others.

In terms of religion, 42.5% were Hindu, 39.0% Buddhist, 17.4% Prakriti, 0.9% Christian and 0.1% others.

In terms of literacy, 58.3% could read and write, 3.1% could only read and 38.5% could neither read nor write.

• UN map of the municipalities of Dolakha District
• Bigu's website