Worldwide, ธยา (Thaya 
, Dhya 
, ธยา ) is quite a rare unisex first name. The first name ธยา is characteristic of Qatar, where it is quite a rare largely boy's, but seldom female name, Tunisia, where it is quite a rare boy's name, and Sri Lanka. In absolute terms, it most frequently occurs in India, Indonesia, and Sri Lanka. Much less frequently, ธยา is the last name as well as the forename.
ภิรมย์, ธนัญชัย, พวงพงษ์, and สุนทรวิภาต