Cognomen สำเภาทอง (Sampaothong 
, Sampaotong , สำเภาทอง) , throughout the world, is a rare family name. The last name สำเภาทอง is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, สำเภาทอง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sampaothong, Sampaosong, Sampaotong | Thailand |
Junkingthong, Junkonghom, Sampadthongklum, Sampaopong, Sampaowtong, Sampawtong, Samphaopong, Samphaothong, Samphaotong, Samphowthong, Sampowthong, Sampowtong, Sampuangtong, Sompuengtong, Sumpaotong, Sumphuthong, Sumpowthong, and Sumrongthong