Family name Widjaja (Widjaja 
, ウィジャヤ 
) , across the world, is a widespread cognomen. The surname Widjaja is habitual in Indonesia, where it is quite a common surname, Mauritius, and Singapore, where it is quite a rare surname. In absolute terms, it is the most numerous in Indonesia, the United States, and Australia. Very seldom, Widjaja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Widjaja | Malaysia, Singapore, Australia, United States, Indonesia |
| ウィジャヤ | Japan |
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franky oesman widjaja chairman of Golden Agri-Resources, ID (b. 1958) |
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| eka tjipta widjaja Indonesian businessman (1923-2019), ID (b. 1923) |
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angelique widjaja Indonesian tennis player, ID (b. 1984) |
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| anton huang widjaja Indonesian painter, ID (b. 1935) |
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ariesman widjaja |
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kanty widjaja Indonesian model, ID (b. 1991) |
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| martina widjaja Indonesian tennis player (1942-), ID (b. 1942) |
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gloria emanuelle widjaja Indonesian badminton player, ID (b. 1993) |
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| teguh ganda widjaja Former President Director at PT Sinar Mas Group, ID (b. 1944) |
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michael widjaja (b. 1984) |
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| andi widjaja (b. 1940) |
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| elizabeth anita widjaja Indonesian botanist, ID (b. 1951) |
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| muktar widjaja President/Executive Director at Golden Agri-Resources (b. 1955) |
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| elijah frankle "djafar" widjaja Deputy Chairman of Sinar Mas Group (b. 1957) |
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| sumandi widjaja Indonesian politician (born 1957 in Medan), ID (b. 1957) |
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