| Iruvanjippuazha | |
| Name Etymology: | Iruvanjipuzha |
| Subdivision Type1: | Country |
| Subdivision Name1: | India |
| Subdivision Type2: | State |
| Subdivision Name2: | Kerala |
| Subdivision Type3: | Region |
| Subdivision Name3: | Asia |
| Subdivision Type5: | City |
| Subdivision Name5: | Anakkampoyil Thiruvambady Mukkam Kumaraneloor Kodiyathur Chennamangallur Cheruvadi |
| Length: | 50km (30miles)approx. |
| Discharge1 Location: | mouth |
| Source1: | Vellarimala |
| Source1 Location: | Western Ghats, Kerala, India |
| Source1 Coordinates: | 11.2679°N 75.9785°W |
| Source1 Elevation: | 1,544 meters |
| Mouth Location: | Chaliyar River, India |
| Mouth Elevation: | 0m (00feet) |
| Tributaries Left: | Chalippuzha |
| Tributaries Right: | Cherupuzha |
Iruvazhanjippuzha, or Iruvanjipuzha, is a major tributary of River Chaliyar and joining to Chaliyar at Koolimadu near Cheruvadi. Its major tributary is Chalippuzha, which joins with it about 3 km north of Thiruvambady town. Other tributaries are Muthappanpuzha (joining at Anakkampoyil), ulingappuzha (joining at Thiruvambadi) and Karamoola river (join at Mukkam). The famous Thusharagiri waterfall is in the Chalippuzha river. Every year, the Malabar River Festival happens in this river, which is recognized as the biggest Kayak event in Asia.
The villages of Anakkampoyil, kandappanchal,Narangathode,Thiruvambady, Mukkam, Kodiyathur, Chennamangallur and Cheruvadi are on the banks of this river.
Naadan Premam (transl: Love in the Countryside), a major romantic novel by Malayalam writer S. K. Pottekkatt, is set in the backdrops of Iruvanjippuzha. The river is also mentioned in the film Ennu Ninte Moideen. In this film it shows how the real character dies B. P. Moideen after drowning in the Iruvanjippuzha River.
See main article: article and 2024 Wayanad landslides.