William Bourdon (born 1956), is a French lawyer of the Paris Bar Association who practices criminal law, particularly specializing in white-collar crime, communications law and human rights. He particularly specializes in defending the victims of globalization and crimes against humanity. He has been with Bourdon Simoni Voituriez since 1979. He is widely considered one of the most powerful international lawyers.

William Bourdon is the son of engineer and manufacturer Philippe Bourdon, the grandson of Pierre Bourdon, former Michelin chief engineer, and the great-grandson of manufacturer Édouard Michelin, founder of groupe Michelin.