Martijn Wydaeghe (; born 1 September 1992) is a Belgian rallying co-driver. He is partnered with Thierry Neuville for Hyundai Motorsport in the World Rally Championship category.
Wydaeghe made his WRC debut at the 2013 Rallye de France-Alsace with Philip Cracco. He currently co-drives with 2024 champion Thierry Neuville, after having worked with compatriot Nicolas Gilsoul until 2020.
Season still in progress.