Guilder is the English translation of the Dutch and German gulden, originally shortened from Middle High German guldin pfenninc "gold penny". This was the term that became current in the southern and western parts of the Holy Roman Empire for the Fiorino d'oro. Hence, the name has often been interchangeable with florin.

The guilder or florin was the currency of the Netherlands from 1434 until 2002, when it was replaced by the euro.