| Palani Chettipatti | |
| Other Name: | P.C. Patti |
| Settlement Type: | Village |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 9.9925°N 77.4583°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Type2: | District |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Name2: | Theni |
| Unit Pref: | Metric |
| Population Total: | 11750 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Demographics1 Info1: | Tamil |
Palani Chettipatti (P.C. Patti) is a panchayat grama in Theni district in the Indian state of Tamil Nadu. It is located on the road between Theni and Cumbum. The Mullai river flows via this village from Uthamapalayam and goes down the valley pin code is 625531.
It was founded by Palaniappa Chettiar. He and his family members constructed a small dam across the suruliyar river basin in 1840–1845, when John Black Burn was the district collector and magistrate of Madurai-Ramnad Jilla well before the Mullaperiyar Dam was constructed by Colonel John PennyCuick(1895). This dam is used for the irrigation and drinking water supply for several places: Theni - Allinagaram, Palanichettipatti and some near by villages. This dam has the distinction of being the *only* privately owned dam in Tamil Nadu. The founder, Palaniappa Chettiar, was one of the biggest contributors to the construction of the Mullaperiyar Dam.
India census,[1] Palani Chettipatti had a population of 11,750. Males constitute 51% of the population and females 49%. Palani Chettipatti has an average literacy rate of 75%, higher than the national average of 59.5%: male literacy is 80%, and female literacy is 68%. In Palani Chettipatti, 12% of the population is under 6 years.
A Government Aided School, Palaniappa Memorial Higher Secondary School provides low cost education to thousands of students in the nearby rural areas.