- Hat Yai is a city located in southern Thailand. It is the largest city in Songkhla Province and serves as a major transportation and commercial hub for the region. Hat Yai is known for its vibrant streets, bustling markets, and diverse food scene. It is a popular destination for both domestic and international tourists, attracting visitors with its cultural attractions, shopping malls, and lively nightlife. The city also serves as a gateway to the nearby islands and beaches of southern Thailand.