Koj is a surname. It may have multiple origins. Some surname references list it as a possible variant romanization of Chinese surnames including Guo and Gao, and also as a Dutch or Ashkenazic Jewish variant of De Koe.
People People with the surname include:
Aleksander Koj (1935–2016), Polish physician, biochemist, academic and former rector of the Jagiellonian University Michał Koj (born 1993), Polish footballer Sabah Koj (born ), South Sudanese-Australian fashion model
See also
References