Euro is a common prefix denoting things of or connected with Europe or the European Union.

Specific Europe-related meanings of Euro include:

• The currency of many European Union countries; see Euro.
• The UEFA European Football Championship (usually in combination with the year of the event).

The euro is also a subspecies of wallaroo, a kangaroo-like macropod.

In Italian, it is the name of a wind. With this meaning, an Italian frigate of the Maestrale class is named.