| Thiruvenkadu | |
| Settlement Type: | Village |
| Map Alt: | Dynamic map |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Pushpin Label Position: | right |
| Coordinates: | 11.1737°N 79.8105°W |
| Subdivision Type: | Country |
| Subdivision Name: | India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Mayiladuthurai |
| Subdivision Type3: | Mandal |
| Subdivision Name3: | Sirkazhi |
| Seat: | Thiruvenkadu Gram Panchayat |
| Parts Type: | Wards |
| Parts Style: | coll |
| Government Footnotes: | [1] |
| Government Type: | Panchayati raj |
| Leader Title: | Sarpanch |
| Unit Pref: | Metric |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Telugu |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 609114 |
| Registration Plate: | TN |
Thiruvenkadu (also spelled Thiruvengadu) is a village in Sirkazhi taluk of Mayiladuthurai district in the Indian state of Tamil Nadu.[2] It is located from the taluk headquarter, Sirkazhi. The village is also the birth place of Pattinathar, a saivite Tamil scholar and saint who attained salvation in Thirvotriyur near Chennai.
Thiruvenkadu has the population of 8252, of which males are just 4126 while females are 4126. The literacy rate of Thiruvenkadu, as per 2011 census is 82.89 per cent.
Swetharanyeswarar Temple is a Hindu temple in Thiruvenkadu. The main deity is Swetharaneswarar (Shiva) but there is a separate sannidhi for Budhan (Mercury).