This is the list of cities worldwide which have premetro systems. In other words: tram or light rail systems which are, or were, intended to be converted to full rapid transit systems.
| Location | Country | Relevant Wikipedia article | Year opened | data-sort-type="number" | Stations | data-sort-type="number" | System length |
|---|---|---|---|---|---|---|---|
| Antwerp |  Belgium | Antwerp Pre-metro[1] | 1975 | 11[2] | 8.1km (05miles) | ||
| Brussels | Belgium | Trams in Brussels[3] | 1969 | 15 | |||
| Charleroi | Belgium | Charleroi Metro[4] | 1976 | 48 | 33km (21miles) | ||
 Germany | Frankfurt U-Bahn | 1968 | 86 | 64.9km (40.3miles) | |||
| Dublin | Luas Green Line | 2004 | 35 | 19 km (12 mi) | |||
| Poznań |  Poland | Poznań Fast Tram[5] | 1997 | 8 | 8.1km (05miles) | ||
| Kraków | Poland | Kraków Fast Tram[6] | 2008 | 57 | 22km (14miles) | ||
| Szczecin | Poland | Szczecin Fast Tram | 2015 | 4 | |||
| Volgograd Metrotram | 1984 | 22 | 17.3km (10.7miles) | ||||
| Gothenburg |  Sweden | Gothenburg tram network[7] | 1969 | 5 | |||
| Zurich |  Switzerland | Zurich Premetro[8] | 1986 | 3 | 2.5km (01.6miles) | ||
| Kyiv |  Ukraine | Kyiv Light Rail[9] | 2000 | 7 | 6.7km (04.2miles) | ||
| Kryvyi Rih | Ukraine | Kryvyi Rih Metrotram[10] | 1986 | 11 | 17.7km (11miles) | ||
| San Francisco | Muni Metro[11] | 1980 | 33 | 59.2 km (36.8 mi) | |||
| Boston | MBTA Green Line[12] | 1897 | 65 | 38.1 km (23.7 mi) | |||
| Newark | Newark Light Rail | 1935 | 17 | 10 km (6.2 mi) | |||
| Philadelphia | Subway-Surface Lines | 1906 | 16 | 63.7 km (39.6 mi) |
| Location | Country | Relevant Wikipedia article | Years | data-sort-type="number" | Stations | data-sort-type="number" | System length |
|---|---|---|---|---|---|---|---|
| Buenos Aires |  Argentina | Subte de Buenos Aires (Line A) | 1913-1926 | — | — | ||
| Vienna |  Austria | Zweierlinie - U2 | 1966-1980 | 8 | 3.4km (02.1miles) | ||
| Line 64 - U6 | 1979-1995 | 3 | 0.8km (00.5miles) | ||||
| Brussels | Belgium | Brussels Metro Line 1/5 | 1969-1976 | — | — | ||
| Brussels Metro Line 2/6 | 1970-1988 | — | — | ||||
| Rio de Janeiro | Rio de Janeiro Metro (Line 2) | 1983-1998[13] | — | — | |||
| Nuremberg | Germany | Nuremberg Metro (U1)[14] | 1970-1981 | 2 | 1km (01miles) | ||
| Oslo |  Norway | Oslo Metro | 1928-1966 | — | — | ||
| Stockholm | Sweden | Stockholm Metro[15] [16] | 1933-1950 | — | — | ||
| Boston |  United States | MBTA Blue Line | 1904-1924 | 4 | 1.6 km (1.0 mi) |