Balthazar Seydoux de Clausonne (born 13 August 1971) is a Monegasque politician.

[2] He graduated from Paris Descartes University with a master's degree in Business Law (DESS).

[1] Seydoux started his career at the Pechiney subsidiary as a financial controller in Paris.

[3] Later he worked as a financial controller at Disney Partner Group Russell Reynolds Associates for five years.

[3] In 2018, Seydoux was elected as a member of the National Council of Monaco from the political group Primo!