François-Xavier Georges Joseph Marie Ghislain baron van der Straten-Waillet (22 January 1910 - 15 February 1998) was a Belgian politician for the Christian Social Party.

Van der Straten-Waillet [nl] was a son of baron Alphonse van der Straten-Waillet (1884-1964), mayor of Westmalle, and of Irène Bosschaert de Bouwel (1885-1971).

Van der Straten-Waillet married Marie-Thérèse Moretus Plantin de Bouchout (1912-2004) in 1935 and had six children.

[1] He obtained his doctorate in law at the Catholic University of Leuven in 1932 and became a director of the Verbond van Kristelijke Werkgevers (League of Christian Employers).

In 1946, he was elected as a Member of Parliament for the Christian Social Party for the Arrondissement of Antwerp.