Last name Katou (カトウ 
, Katou 
, كاتو 
) , all over the world, is quite a rare surname. The family name Katou is characteristic of Japan, where it is a rare surname, Egypt, and Algeria. Much more frequently, Katou is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| カトウ | Japan |
| Katou | Morocco, Japan, China, Ivory Coast, Algeria |
| كاتو | Egypt, Sudan, Iraq, Jordan |
| Като | Bulgaria, Russia, Kyrgyzstan, Ukraine |
| shadi katou researcher (ORCID 0000-0001-5482-7458) |
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| daigo katou Japanese actor |
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| shinpei katou researcher (ORCID 0000-0001-5379-1422) |
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| daisuke katou researcher |
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| hidetaka katou researcher |
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