| Vilandhai | |
| Settlement Type: | village |
| Pushpin Map: | India Tamil Nadu#India |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 11.3267°N 79.3856°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Ariyalur |
| Unit Pref: | Metric |
| Population Total: | 11675 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Blank2 Name Sec1: | Nearest city |
| Blank2 Info Sec1: | Andimadam |
| Blank3 Name Sec1: | Sex ratio |
| Blank3 Info Sec1: | 1.009 ♂/♀ |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
Vilandhai is a village nearer to Andimadam in the Ariyalur district of Tamil Nadu, India. Vilandhai is divided into Vilandhai-North and Vilandhai-South.
The Bilva trees were surrounding the Lord Agatheswarar temple, so the place was called Vilandhai.
As per the 2001 census, Vilandhai-South had a total population of 9663 with 4855 males and 4808 females, while Vilandhai-North had a total population of 2012 with 1009 males and 1003 females.
The main occupation of the residents is weaving.