| Onakkoor | |
| Settlement Type: | Village |
| Pushpin Map: | India Kerala#India |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Kerala, India |
| Coordinates: | 9.8939°N 76.5142°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Kerala |
| Subdivision Type2: | District |
| Subdivision Name2: | Ernakulam |
| Unit Pref: | Metric |
| Population Total: | 12421 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Malayalam, English |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 686667 |
| Area Code Type: | Telephone code |
| Area Code: | 485227 |
| Blank1 Name Sec1: | Nearest city |
| Blank1 Info Sec1: | Piravom |
| Blank2 Name Sec1: | Literacy |
| Blank2 Info Sec1: | 100% |
| Blank1 Name Sec2: | Climate |
| Blank1 Info Sec2: | Cool, Humid |
Onakkoor is a village in Ernakulam district in the Indian state of Kerala.[1] The main attractions in the village are Onakkoor River and Onakkoor Temple. Other attractions include Edayan Lake and Onakkoor check dam (Ooranattu chera). Famous writer George Onakkoor is associated with this village. The SH-42 Highway[2] passes through Onakkoor. Piravom is the nearest town with markets and hospitals. The dominant religions are Hinduism and Christianity.
Onakkoor is a part of Pambakuda Grama Panchayat and is situated in Muvattupuzha Taluk.
India census, Onakkoor had a population of 12,421 with 6,203 males and 6,218 females.