The Tirur River begins in the Tirur taluk village of Athvanad in the Malappuram district of the state of Kerala in south India and flows south-west to Thiruvnavaya and then north-west to Elamkulam where it turns south-west, joining the Bharathapuzha River, which flows into the Arabian Sea near the coastal town of Ponnani. It is known for its beautiful mangroves and its many varieties of fishes and birds.
This river is navigable and forms part of west coast water transport system. Its length is 48 kilometres (30 mi). Thunchaththu Ramanujan Ezhuthachan - the father of Malayalam literature was born and brought up on the banks of this river and his birthplace at Thunjan Parambu is situated very near to the river and the place is called Annara desam and Trikkandiyoor amsom in the former Kingdom of Tanur (Vettattnad). Vallathol Narayana Menon, poet and the founder of Kerala Kalamandalam, was also born on the banks of this river.
- "Malappuram - Important Rivers". National Information Centre. Retrieved 2006-10-13.
- "Tirur River". International EcoTourism Club. Retrieved 2006-10-13.
- Tirur River
- Road Over Bridge at Tirur Inaugurated