Dieter Vanthourenhout (born 20 June 1985 in Bruges) is a Belgian former professional racing cyclist.

He is the brother of racing cyclist Michael Vanthourenhout.

[3] Vanthourenhout retired from cycling at the end of 2020, after 14 years as a professional.

[4] This biographical article related to a Belgian cyclist born in the 1980s is a stub.

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