Cognomen Jansiri (Jansiri 
) , in all the world, is a rare last name. The last name Jansiri is characteristic of Thailand, where it is quite a rare surname, and France, where it is an extremely rare surname. Much less frequently, Jansiri is the forename as well as the last name.
Jin, Taywin, Theera, Tubtim, Viriya, Orapin, Orawan, Wannee, Xavier, Meuanfun, Sawinan, Sirinat, Siriluk, Suriyon, Somchok, Arakorn, Ampawan, Aphinan, Ajchara, Chaiwat, Chaiwut, Parkorn, Pajika, Pakwan, Atikan, Amnouy, Kose, Pana, Hong, Hugo, Yupa, Satit, Srion, Araya, Kanti, Jitti, Prawpan, Thiti, Weera, Manita, Samran, Sirima, Sittha, Sunisa, Sudjai, Seksan, Somjai, Aniwat, Varin, and Pronpan