Family name Kaku (Kaku 
, カク , كاكو 
, among others...) , across the world, is a common surname. The surname Kaku is habitual in Ghana, where it is quite a rare surname, Papua New Guinea, and Oman. Not in comparison with a country's population, it most frequently occurs in India, Nigeria, and Ghana. Also, Kaku is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kaku | Bangladesh, India, Japan, Nigeria, Ghana |
| カク | Japan |
| كاكو | Iraq, Egypt, Sudan, Iran, Algeria |
| Каку | Kazakhstan, Russia |
| קאקו | Israel |
|
michio kaku American theoretical physicist, futurist and author, US (b. 1947) |
|
| shūichi kaku JP (b. 1931) |
|
|
| nan'en kaku (b. 1962) |
|
|
| blessing kaku footballer, NG (b. 1978) |
|
|
| yasuyuki kaku researcher |
|
|
| nobuhiro kaku researcher |
|
|
| yoshio kaku researcher (ORCID 0000-0002-0748-6934) |
|
|
| kaku mitsuo researcher (ORCID 0000-0002-3714-8100) |
|
|
| shigeru kaku researcher (ORCID 0000-0002-0527-2465) |
|
|
| hanae kaku researcher |
|
|
| ken kaku researcher (ORCID 0000-0003-0258-2078) |
|
|
| yuji kaku researcher |
|
|
| masaru kaku researcher |
|
|
| yo kaku researcher |
|
|
| noriyuki kaku researcher |
|