Cognomen Riyanto (Riyanto 
) , globally, is a widespread family name. The cognomen Riyanto is characteristic of South-eastern Asia, particularly Indonesia, where it is quite a common surname, Brunei, where it is quite a rare surname, and Malaysia. Not in comparison with a country's population, this name is the most popular in Indonesia, Malaysia, and Saudi Arabia. Very seldom, Riyanto is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Riyanto | China, Indonesia, Saudi Arabia, Malaysia, United States |
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a. riyanto Indonesian composer (1943-1994), ID (b. 1943) |
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riyanto sofyan ID (b. 1958) |
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| bambang riyanto Indonesian politician, ID (b. 1959) |
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| toto riyanto ID (b. 1951) |
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| riyanto wujarso Indonesian politician (born 1962 in Purwodadi), ID (b. 1962) |
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| slamet riyanto ID (b. 1958) |
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| anastasius riyanto ID (b. 1958) |
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| riyanto basuki ID (b. 1960) |
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| r. benny riyanto ID (b. 1962) |
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| joko riyanto ID (b. 1962) |
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| sigit riyanto ID (b. 1964) |
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| lisa a. riyanto Indonesian singer, ID (b. 1975) |
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| mayjend. pol bibit samad riyanto Indonesian political candidate, ID |
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| yohanes eko riyanto economist (Nanyang Technological University) |
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| yohanes e riyanto researcher (ORCID 0000-0001-7343-4043) |
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