Last name Wiruch (วิรัช 
, Wiruch 
, วิรุช ) , all over the world, is a rare cognomen. The last name Wiruch is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much more prevalently, Wiruch is the forename as well as the last name.
Rooo, Luangdilok, Tounminah, Ninnatee, Nuntalohit, Sawangarun, Suchaiprasert, Chanwitayanuchit, Pansiriroj, Nantalohit, Wanmalikphan, Singhaphan, Sittichote, Sompoppokakul, Kanjanakrut, Panyatipsakul, Luengwantha, Prakobchaichana, Phongnaparux, Tassananukuikit, Roopsouylert, Pooksaweg, Patroung, Kurakaew, Innok, Buatha, Romyen, Towiruch, Netidhammapimook, Manyaem, Sudkaew, Suesuwan, Sreyapai, Tassananukulkit, Coomdist, Poonsup, Poogsaweg, Poogsawek, Phairat, Wongnuwat, Maksuanpan, Satrakom, Srichoom, Kawinmutthatorn, Kosiampaiwong, and Udomponglukkana