Last name Sonchan (Sonchan 
, สอนจัน ) , globally, is a rare surname. The cognomen Sonchan is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname, and Cambodia, where it is a very rare surname. Very seldom, Sonchan is the forename as well as the last name.
Sanit, Punnatorn, Wichakon, Wutichai, Suksaengboon, Kritsanee, Pathumporn, Pontakorn, Pannathon, Thinnakon, Thosaphon, Witthawat, Sooksaengboon, Patcharinya, Pisanupong, Jittranun, Pattamon, Chananyu, Siriporn, Suwat, Anong, Arrom, Panwa, Adisak, Chiwat, Pairat, Surasak, Surasuk, Chaiwat, Jakkrit, Jutatip, Jirawan, Thiptida, Nawarat, Natthapong, and Phatcharaporn