| Gangajamuna | |
| Official Name: | Rural Municipality in Nepal |
| Native Name: | गंगाजमुना |
| Native Name Lang: | ne |
| Pushpin Map: | Nepal |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Nepal |
| Subdivision Type: | Country |
| Subdivision Name: | Nepal |
| Subdivision Type1: | Development Region |
| Subdivision Name1: | Central |
| Subdivision Type3: | District |
| Subdivision Name3: | Dhading |
| Subdivision Type4: | Province |
| Subdivision Name4: | Bagmati Province |
| Subdivision Type5: | Rural Municipality |
| Subdivision Name5: | Gangajamuna |
| Leader Title: | Secretary of GRM |
| Leader Name: | Bhakta Lama |
| Leader Title2: | Vice Secretary of GRM |
| Leader Name2: | Rameshwor Simkhada |
| Area Total Km2: | 154.72 |
| Population Total: | 21,784 |
| Population As Of: | 2017 |
| Population Footnotes: | [1] |
| Population Density Km2: | auto |
| Area Code: | 010 |
| Timezone: | NST |
| Utc Offset: | +5:45 |
Gangajamuna (Nepali: गंगाजमुना; gangajamuna) is a Gaupalika(Nepali: गाउपालिका ; gaupalika)[2] Formerly: village development committee) in Dhading District in the Bagmati Province of central Nepal. The local body was formed by merging five VDCs namely Rigaun, Gumdi, Phulkharka, Baseri and Budhathum. Currently, it has a total of 7 wards, larger VDCS Gumdi, and Rigaun are divided in 2 wards each whereas other VDCs are divided into only one ward. The population of the rural municipality is 21,784 according to the data collected on 2017 Nepalese local elections.
At the time of the 2011 Nepal census, Gangajamuna Rural Municipality had a population of 21,784. Of these, 49.0% spoke Nepali, 30.0% Tamang, 11.4% Gurung, 9.2% Ghale, 0.2% Newar and 0.2% other languages as their first language.[3]
In terms of ethnicity/caste, 30.0% were Tamang, 18.9% Chhetri, 13.7% Gurung, 11.4% Ghale, 6.7% Hill Brahmin, 4.9% Newar, 4.4% Kami, 4.3% Magar, 2.9% Sarki, 1.9% Damai/Dholi, 0.4% Gharti/Bhujel, 0.3% Rai, 0.1% Musalman and 0.1% others.[4]
In terms of religion, 48.6% were Hindu, 32.7% Buddhist, 18.6% Christian and 0.1% Muslim.[5]
In terms of literacy, 59.7% could both read and write, 1.6% could read but not write and 38.8% could neither read nor write.[6]
As per 2017, Gangajamuna hosts a population of 21,784 across a total area of .