Last name Krongkwan (Krongkwan 
) , all around the world, is an extremely rare family name. The cognomen Krongkwan is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more frequently, Krongkwan is the forename as well as the last name.
Makjun, Jearwattanakanok, Nitiyothin, Wannapan, Srivichai, Chitrobaree, Chitsakul, Boonnatee, Kananurak, Potakarat, Tuanchaisri, Suphannakul, Chalermpichai, Chalongdan, Kaewchuchuen, Phongwanitanan, Rangsiyanon, Thongsawan, Nakornthap, Boriboonpan, Kiatcharoensiri, Chawawisuttikool, Daungpawang, Promboot, Pattaney, Kulkanlayawat, Singto, Sonart, Kariya, Hodrucha, Mokthong, Meechai, Mungsujaritkarn, Mulcahy, Sammons, Sinyang, Cheewarungnapakul, Khamsai, Panpoom, Riyapan, Limsrivilai, Tonkaew, Tisuthiwongse, Satjasenee, Annopborriboon, Chanasit, Chawchumnum, Baesakul, Khoyudklang, and Karnchanapoom