Family name กระทง (Krath 
, กระทง 
, Teangkrathok ) , worldwide, is a rare cognomen. The cognomen กระทง is characteristic of Denmark, where it is quite a rare surname, Thailand, where it is a rare surname, and Sweden. Measured by absolute frequency, this name is the most popular in Denmark, Thailand, and Germany. Much less frequently, กระทง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Krath | Germany, Sweden, China, United States, Denmark |
| Krongkatok, Teangkrathok, กระทง | Thailand |
Karkhong, Kraboot, Krabsong, Krahong, Krangkatok, Krapthong, Krasathong, Kratarng, Krate, Kratha, Krathang, Krathap, Krathon, Krathong, Krathoung, Kratnakha, Kratob, Kratong, Kratue, Krautong, Krawthong, Krethong, Kribkratok, Kribkratoke, Kringkratok, Thonkatok, and Tonkratog