Viyyoor is a residential area situated in the city of Thrissur in Kerala state of India.

Viyyur is Ward 4 of Thrissur Municipal Corporation.

It is dotted by a number of temples, churches, Mosques and is surrounded by lush greenery.

It is about 4 km from Swaraj Round.

It has one of the three central jails in Kerala, Viyyoor Central Jail.