Surname Sumbayak (Sumbayak 
) , worldwide, is quite a rare cognomen. The family name Sumbayak is characteristic of South-eastern Asia, particularly Indonesia, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sumbayak | Indonesia, United States |
| djaulung wismar saragih sumbayak clergy, translator, missionary in Simalungun, North Sumatra, ID (b. 1888) |
|
Adi, Deak, Dedy, Doli, Dheo, Good, Lina, Jaya, Jean, Jhon, Evan, Yuni, Milam, Sisca, Abner, Astri, Asenk, Basra, Betty, Krisa, Putri, Putra, Rien, Ronal, Rita, Rico, Roy, Ria, Dwi, Leo, Jan, Edi, Eva, Maya, Mika, Sari, Alve, Aldo, Ando, Bayu, Kaka, Kiky, Paul, Rani, Raja, Rado, Roni, Rina, and Royen