Cognomen กุลพันธ์ (กุลพันธ์ 
, Kulpan 
, Gulapan 
) , globally, is a rare last name. The family name กุลพันธ์ is habitual in Thailand, where it is a rare surname, Philippines, and Poland. Likewise, กุลพันธ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| กุลพันธ์, Kulphand | Thailand |
| Kulpan | Poland, Thailand, Kazakhstan, India, United States |
| Gulapan | Philippines, United States, India |
Khulphant, Koollapunt, Koolpan, Koolphaen, Kulampan, Kulapan, Kulapant, Kulapantha, Kulaphan, Kulaphun, Kulapun, Kularpwan, Kuleepun, Kullapan, Kullaphan, Kullaphun, Kullapun, Kulpant, Kulpanun, Kulphan, Kulphanan, Kulphansn, Kulphun, Kulpunt, Kulumpan, Kuneephan, Kunlapan, Kunlaphan, Kunlapun, Kunnaphan, Kunphan, Kuntapan, Kuntapun, and Kusolpun