Editing Commuter rail (section)

====Eastern Europe====
[[File:SKM S9 Pludy.JPG|thumb|[[Szybka Kolej Miejska (Warsaw)|SKM]] train in Warsaw, Poland]]
In Poland, commuter rail systems exist in [[Szybka Kolej Miejska (Tricity)|Tricity]], [[Szybka Kolej Miejska (Warsaw)|Warsaw]], [[Kraków]] ([[Szybka Kolej Aglomeracyjna|SKA]]) and [[Katowice]] ([[Szybka Kolej Regionalna|SKR]]). There is also a similar system planned in [[Wrocław]] and [[Szczecin]].<ref>{{cite web|title=Szczecińska Kolej Metropolitalna -|url=http://skm.szczecin.pl/index.php}}</ref> The terms used are "Szybka Kolej Miejska" (fast urban rail) and "kolej aglomeracyjna" (agglomeration rail). These systems are:
* [[Szybka Kolej Miejska (Warsaw)|Szybka Kolej Miejska w Warszawie]] in the [[Warsaw]] urban area, with 4 lines and 46 stations.<ref>[[:pl:Szybka Kolej Miejska w Warszawie]]</ref>{{Circular reference|date=May 2020}}
* [[Łódzka Kolej Aglomeracyjna]] is located in the center of Poland connecting satellite towns in and around [[Łódź]]. It also operates some trains between Łódź and Warsaw.
*[[Szybka Kolej Miejska (Tricity)|Szybka Kolej Miejska w Trójmieście]] is located in the [[Tricity, Poland|Tricity]]/Trójmiasto urban area, the three cities of [[Gdańsk]], [[Gdynia]] and [[Sopot]].

The [[Proastiakos]] ({{langx|el|Προαστιακός}}; "suburban") is [[Greece]]'s [[suburban]] railway (commuter rail) services, which are run by [[TrainOSE]], on infrastructure owned by the [[Hellenic Railways Organisation]] (OSE). There are three Proastiakos networks, servicing the country's three largest cities: [[Athens]], [[Thessaloniki]] and [[Patras]]. In particular, the [[Athens Suburban Railway|Athenian network]] is undergoing modifications to completely separate it from mainline traffic, by re-routing the tracks via a tunnel underneath the city center. A similar project is planned for the [[Patras]] network, whereas a new line is due to be constructed for the [[Thessaloniki Regional Railway|Thessalonian network]].

In Romania, the first commuter trains were introduced in December 2019. They operate between [[Bucharest]] and Funduea or [[Buftea]].

[[BG Voz]] is an urban rail system that serves Belgrade. It currently has only two routes, with plans for further expansion. Between the early 1990s and mid-2010s, there was another system, known as [[Beovoz]], that was used to provide [[mass-transit]] service within the Belgrade [[metropolitan area]], as well as to nearby towns, similarly to [[Réseau Express Régional|RER]] in Paris. Beovoz had more lines and far more stops than the current system. However, it was abandoned in favor of more accurate BG Voz, mostly due to inefficiency. While current services rely mostly on the existing infrastructure, any further development means furthering capacities (railways expansion and new trains). Plans for further extension of system include another two lines, one of which should reach [[Belgrade Nikola Tesla Airport]].

In Russia, Ukraine and some other countries of the former [[Soviet Union]], electrical multiple unit passenger suburban trains called [[Elektrichka]] are widespread. The first such system in Russia is the Oranienbaum Electric Line in [[Saint Petersburg|St. Petersburg]]. In Moscow the Beskudnikovskaya railway branch existed between the 1940s and 1980s. The trains that shuttled along it did not go to the main lines, so it was a city transport. Today there are the [[Moscow Central Circle]] and the [[Moscow Central Diameters]].
{{See also|Urban electric transport in Russia}}

In Turkey, [[Marmaray]] line stations from [[Sirkeci]] to [[Halkalı]] are located at the European side.