Bilger is a surname. Notable people with the surname include:
Audrey Bilger, American academic administrator Camille Bilger (1879–1947), French politician Grace Bilger (1907–2000), American painter Leonora Bilger (1893–1975), American chemist Pierre Bilger (1940–2011), French businessman Steffen Bilger (born 1979), German politician Joseph Bilger, French journalist born under the German rule and his son Philippe, a French judge (born de facto in the Gau Westmark)
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