| Pinnaiyur West | |
| Other Name: | Pinnaiyur |
| Settlement Type: | Village |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 10.5858°N 79.2242°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Thanjavur |
| Subdivision Type3: | Taluk |
| Subdivision Name3: | Orathanadu |
| Government Type: | Village Panchayat |
| Unit Pref: | Metric |
| Area Footnotes: | [1] |
| Area Total Km2: | 12.523 |
| Population Total: | 5000 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Demographics Type2: | Community |
| Demographics2 Title2: | Caste |
| Demographics2 Info2: | Kallar, Thevar, vellalar,SC and ST |
| Demographics2 Info3: | Kalingarayar,KandiyarPinnundar,Saaluvar, Kandar, Olugundar and Cholagar |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 614902 |
| Registration Plate: | TN-49 |
Pinnaiyur is a village in Thanjavur district of the Indian state of Tamil Nadu. It is located in Orathanadu taluk.
census, Pinnaiyur had a population of 4453 and Vadakunatham village which is part of Pinnaiyur Nadu had a population of 678. The total population constitute, 2220 males and 2200 females.
In terms of agriculture this village is having around 2500 hectares of raw fertile land. Agriculture is the major occupation for people of this village. Pinnaiyur Nadu consists of Pinnaiyur East, Pinnaiyur West and Vadakunatham villages. The literacy rate is around 90% which is comparatively higher than any other village in Thanjavur district. Pinnaiyur is the only village which is holding dedicated local body governance system and NADU status without including any other neighbouring villages in Orathanadu taluk. Since Pinnaiyur is having large geographical area and healthy population it has been divided into Pinnaiyur East and Pinnaiyur west for administrative purpose.
Pinnaiyur has prominent members in the field of Medicine, Engineering, Law, Research, Arts and Science, Politics, Sports, Agriculture. M.Ramachandran MLA Orathanadu constituency belong to Pinnaiyur. Many doctors, engineers, government employees, and IT professionals have emerged from this village. Below list of educational institutes are available in Pinnaiyur.
Pinnaiyur is having almost all the Hindu temples which is located in the western side of the village. Sri Thirunthandi Ayyanar, Sri Muthu Mariamman Amman, Sri Pidari Amman Sri Pillaiyar, Sri Kaliamman Amman, Sri Varatharaja Perumal, Sri Murugan, Sri Premapurishwarar and Sri Piraisoodi Amman temples were located in temple street.Panguni uthiram is a famous festival during summer season followed by 10 days cultural events. 8 Karai people will represent their karai during Panguni Uthiram.The festival celebrated in this historical village is very famous for its Chariot, lifted manually and carried on the shoulders of the brave people of Pinnaiyur for around 30 km by tremendous, virtually unstoppable force.
Pinnaiyur is having around 10 streets including Vadakunatham. Around 1500 families were residing in it.