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.

• Viyyoor Central Jail
• Government Engineering College, Thrissur
• District Institute for Education and Training
• Hindi Training College
• Viyyur Grameena vayanasala
• St. Francis L.P. School
• 110 kV substation
• Viyyur Post Office

• Viyyoor Shiva Temple, which stands on the entrance of Viyyoor near the Viyyoor bridge.
• RC Church of Our Lady of Perpetual Help (Nithya Sahaya Matha Church).
• Viyyoor Manalarukavu devi temple, famous for the kavadi mahotsavam celebrated every year.

• Thrissur
• Thrissur District
• List of Thrissur Corporation wards