Family name Potuku (Potuku 
) , worldwide, is a rare cognomen. The surname Potuku is characteristic of Papua New Guinea, where it is quite a rare surname, New Zealand, where it is a very rare surname, and Indonesia. Measured by absolute frequency, it most frequently occurs in Papua New Guinea, Indonesia, and India.
| VARIANT | COUNTRY |
|---|---|
| Potuku | Indonesia, New Zealand, India, Papua New Guinea |