Cognomen Riyaa (Riyaa 
) , worldwide, is a very rare surname. The cognomen Riyaa is characteristic of Saudi Arabia, where it is a very rare surname, Malaysia, and Indonesia. More prevalently, Riyaa is the forename as well as the last name.
Sen, Pillay, Roshan, Reuban, Thakur, Sachdev, Alanazi, Kalaani, Kaushal, Paryani, Gulwani, Yashoda, Malhotra, Bhowmick, Perpetuva, Vandanaa, Kumari, Bakale, Chopra, Sharma, Roy, Das, Shah, Soni, Khan, Rana, Riya, Venkatraj, Devi, Munot, Singh, Arora, Patel, Rawat, Gupta, Varma, Jain, and Bhattacharya