Geert Wilders is descended from Dutch-Indonesian ancestry on his mother's side, as genealogical research has shown. According to Dr. Lizzy van Leeuwen, a specialist in Dutch postcolonial history, Wilders' Indo family history has had a great influence on his political ideology. 'More than anything else, Wilders can be seen as a postcolonial revanchist through and through, obsessed as he is with reversing postwar geopolitical demographic changes and correcting historical mistakes.'

Johan Ording, Wilders' grandfather, in the National Archives. Ording was deputy director of financial supervision in East Java, where he married Johanna Meijer, who came from a well-known Jewish-Indonesian family. In 1934 he was dismissed for 'serious misconduct' and his return to the Dutch East Indies - he was on leave in the Netherlands - was not compensated. He also did not receive a pension, which caused the family to have great financial difficulties. According to Van Leeuwen, these bitter events must have left deep scars on the family.

Little is known about Geert Wilders' family background, not least because he himself is reserved about it.