Surname Janyou (Janyou 
) , in the world, is a very rare cognomen. The cognomen Janyou is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
Adchara, Pimmada, Anchalee, Chayanon, Chotipon, Kanokwan, Kanokkan, Pakhawadee, Grittiyaporn, and Chompoonuch