Sik is a major town and district in Kedah, Malaysia. It is located on the eastern part of the state, and is bordered by Padang Terap district to the northwest, Thailand to the north, Baling district to the south, Kuala Muda district to the southwest, and Pendang district to the west.
The population of Sik is 63,865, the majority ethnic group being Malay.
Sik is famous for Muda River, which is the longest river in Kedah and Beris Dam, which is a water supply dam completed in 2004 at a cost of RM360 million. The latest attraction is Beris Vineyard which has attracted thousands of visitors since its opening.