Source dependent

The source or production method of dijon mustard can vary, so it is not always vegan.

Names you may see on a label

Dijon-Senfsenape di DigionedijonsenapMostaza de Dijonmosterd van DijonDijonsennepDijonská hořčicemoutarde de dijondijon-sinappiДіжонська гірчицяMusztarda DijonДижонская горчица디종 머스터드dijonsennepMostarda DijonDijon-mosterdmosterd uit Dijon

How to verify it

Look for a vegan certification or a manufacturer statement identifying the original source. The ingredient name alone does not settle it.