| Campierganj | |
| Settlement Type: | Town |
| Pushpin Map: | India Uttar Pradesh |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Uttar Pradesh, India |
| Coordinates: | 27.029°N 83.2668°W |
| Subdivision Type: | Country |
| Subdivision Name: | India |
| Subdivision Type1: | State |
| Subdivision Name1: | Uttar Pradesh |
| Subdivision Type2: | District |
| Subdivision Name2: | Gorakhpur |
| Established Date: | 10 November 1877 |
| Government Type: | Panchayati government |
| Unit Pref: | Metric |
| Elevation Footnotes: | 86 meter |
| Population Total: | 329,104 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Hindi,Bhojpuri |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 273158 |
| Registration Plate: | UP-53 |
| Blank1 Name Sec1: | Nearest city |
| Blank1 Info Sec1: | Gorakhpur |
| Blank2 Name Sec1: | Sex ratio |
| Blank2 Info Sec1: | 1000/921 ♂/♀ |
| Blank3 Name Sec1: | Lok Sabha constituency |
| Blank3 Info Sec1: | Gorakhpur |
| Blank4 Name Sec1: | Vidhan Sabha constituency |
| Blank4 Info Sec1: | Campierganj |
| Blank1 Name Sec2: | Avg. annual temperature |
| Blank1 Info Sec2: | 25°C |
| Blank2 Name Sec2: | Avg. summer temperature |
| Blank2 Info Sec2: | 40°C |
| Blank3 Name Sec2: | Avg. winter temperature |
| Blank3 Info Sec2: | 15°C |
Campierganj (on the name of British "station master" of this railway station) also called as Chaumukha, is a small Town in the province of Uttar Pradesh in north India, approximately north of Gorakhpur city near the border with Nepal on National Highway-24 (NH-24) in Gorakhpur District. This is situated on the Buddhist Circuit which is built from Lumbini (Nepal), Kushinagar, Sarnath up to Bodh Gaya. Campierganj is a Tahsil (subdivision) in Gorakhpur district of Uttar Pradesh.
There are two intermediate co-education college, one girls intermediate college and one government degree college in the town. Railway broad gauge trains of Indian Railways are running between Gorakhpur and Nautanwa passes through Campierganj. Former Chief Minister of Uttar Pradesh and Union Cabinet Minister of Communication of India Sri Vir Bahadur Singh started his political career from Campierganj.
Other nearest towns to Campierganj are Pharenda, Peppeganj, Paniara and Mehdaval bazar in range of 20 km.
An ancient famous temple of god Shiva located at Gaurishankar village is approximately 6 km far from Campierganj towards west.