| Pinnaiyur East | |
| Other Name: | Pinnaiyur |
| Settlement Type: | Village |
| Pushpin Map: | India Tamil Nadu#India |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Thanjavur |
| Subdivision Type3: | Taluk |
| Subdivision Name3: | Thiruvonam |
| Leader Title: | Panchayat President |
| Unit Pref: | Metric |
| Area Footnotes: | [1] |
| Area Total Km2: | 6.4607 |
| Population Total: | 5123 East+West&Vadakunatham |
| 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, |
| Demographics2 Title3: | Sub Castes |
| Demographics2 Info3: | Kalingarayar, Kandiyar, Saluvar, Pinnundar, Kandar, Olugundar and Cholagar |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Website: | http://pinnaiyurvillage.wixsite.com/pinnaiyur |
Pinnayur East is a village in Thanjavur district of the Indian state of Tamil Nadu. It is located in Orathanadu taluk.
census, Pinnaiyur West had a population of 2,384. The total population constitute, 1,163 males and 1,221 females —a sex ratio of 1050 females per 1000 males. 190 children are in the age group of 0–6 years, of which 95 are boys and 95 are girls. The average literacy rate stands at 80.45% with 1,765 literates.