| Villianur | |
| Native Name Lang: | ta |
| Settlement Type: | Neighbourhood |
| Pushpin Map: | India Puducherry |
| Pushpin Map Caption: | Villianur, Puducherry |
| Coordinates: | 11.9106°N 79.7586°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | Union territory |
| Subdivision Name1: | Puducherry |
| Subdivision Type2: | District |
| Subdivision Name2: | Puducherry |
| Established Title: | |
| Unit Pref: | Metric |
| Area Total Km2: | 65 |
| Elevation M: | 38.82 |
| Population Total: | 34,383[1] |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Info1: | Tamil, English, French |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code: | 605110[2] |
| Area Code Type: | Telephone code |
| Area Code: | +91413******* |
| Registration Plate: | PY - 05 ** xxxx |
| Blank1 Name Sec1: | Other Neighbourhoods |
| Blank1 Info Sec1: | Ariyankuppam, Thattanchavadi, Mangalam |
| Blank2 Name Sec1: | Corporation |
| Blank4 Name Sec1: | LS |
| Blank4 Info Sec1: | Puducherry |
| Blank5 Name Sec1: | VS |
| Blank5 Info Sec1: | Villianur |
| Blank6 Name Sec1: | MP |
| Blank7 Name Sec1: | MLA |
Villianur, or Villianoor, is a commune panchayat and the headquarters of the Villianur taluk of Puducherry District. Kameeswarar temple is the major landmark in the town.
Villianur is located at a distance of 9 kilometres south of Puducherry Municipality. It forms a part of the Puducherry urban agglomeration. The town houses famous hindu temple Kokilambigai udunurai sri thirukameswarar Kameeswarar temple. Located in the banks of Sankaraparani River. surrounded by more industries. It has several years old Villianur railway station,formed during french rule.
According to the 2001 census, Villianur had a population of 104,000. It is the third largest town in Puducherry District after Puducherry and Ozhukarai.