List of town tramway systems in Portugal

This is a list of town tramway systems in Portugal. It includes all tram systems in Portugal, past and present; cities with currently operating systems, and those systems themselves, are indicated in bold and blue background colored rows. The use of the diamond (♦) symbol indicates where there were (or are) two or more independent tram systems operating concurrently within a single metropolitan area. Those tram systems that operated on other than standard gauge track (where known) are indicated in the 'Notes' column.