Surname Souriyathay (Souriyathay 
) , in all the world, is a very rare family name. The cognomen Souriyathay is characteristic of Northern America, particularly the United States, where it is an extremely rare surname, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Souriyathay | Canada, United States |
La, Lathakay, Danniane, Saengahova, Lindsay, Phinsaykeo, Brendan, Leutsanga, Slatleuthay, Bounna, Connie, Aroumy, Manila, Norma, Peter, Douang, and Douangmala