Widjaja or Wijaya, Widjaya is one of the most common surnames in Indonesia. Notable people with the surname include: * Angelique Widjaja (born 1984), Indonesian tennis player * Eka Tjipta Widjaja (1922–2019), Indonesian entrepreneur * Elizabeth A. Widjaja (born 1951), Indonesian botanist * Fuganto Widjaja, Indonesian billionaire * Gloria Emanuelle Widjaja (born 1993), Indonesian badminton player * Mieke Widjaja (born 1940), Indonesian actress * Mira Widjaja (born 1951), Indonesian author * Nani Widjaja (born 1943), Indonesian actress

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