| K.Unjiyaviduthi | |
| Settlement Type: | village |
| 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 |
| Leader Title: | Panchayat President |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Area Code Type: | Telephone code |
| Area Code: | 91-4373 |
K. Unjiyaviduthi (Kattathi Unjiyaviduthi) is a village in the Pattukkottai taluk of Thanjavur district, Tamil Nadu, India.
School: K. Unjiyaviduthi has a Middle school up to 10th standard.