Source dependent

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

Names you may see on a label

Porto포르투 포도주portoPortské vínoPortvinVinho do PortoПортвейнPortviiniPortweinOportovino oportoport wine

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.