Cognomen Thirayada (Thirayada 
) , in all the world, is an extremely rare last name. The family name Thirayada is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Predominantly, Thirayada is the forename as well as the last name.
Martin, Thanaphaisan, Ariyachart, Pakjirapinyo, Yodsawat, Julwanich, Kudeerat, Sompakdee, Nantate, Jaisiri, Kreevak, Suwanno, Manthon, Zuetrong, Youynaul, Neryplub, Thararattanakorn, and Jaruwattanachai