The Electric Railways Museum of Piraeus is a railway museum in Piraeus, Athens, Greece. The museum was established in 2005 in the space of the former Post Office in Piraeus railway station. The museum displays a collection of small size items, photographs and documents related to the history of Athens-Piraeus Railway, Hellenic Electric Railways (EIS), Piraeus-Perama light railway, Piraeus Harbour tramway, Electric Transport Company (IEM) and Athens-Piraeus Electric Railways (ISAP). The museum also owns a collection of approximately 2000 small and medium size items and 3000 books, leaflets and other documents, currently in storage.