U15 (Berlin U-Bahn)

{{Short description|Former subway line in Berlin, Germany}}

{{More citations needed|date=June 2023}}

{{Infobox rail line

| box_width =

| name = File:Berlin transit icons - U15.svg

| other_name =

| native_name =

| native_name_lang =

| color =

| logo =

| logo_width =

| logo_alt =

| image =

| image_width =

| image_alt =

| caption =

| type = Rapid transit

| system = Berlin U-Bahn

| status =

| locale = Berlin

| start = Warschauer Straße

| end = Uhlandstraße

| stations = 13

| routes =

| daily_ridership =

| ridership2 =

| planopen =

| open =

| lastextension =

| yearcommenced =

| yearcompleted =

| close =

| event1label = Created

| event1 = {{Start date|1993|11|13|df=y}}

| event2label = Renumbered
to U1

| event2 = {{Start date|2004|12|12|df=y}}

| event3label =

| event3 =

| owner =

| operator = Berliner Verkehrsbetriebe

| character =

| depot = {{hlist|Grunewald|Warschauer Straße}}

| stock =

| linelength_km = 9.0

| linelength_mi =

| linelength = {{cite web|title=Berlin Subway • Trackmap|url=https://gleisplanweb.eu/Maps/Berlin2.pdf|website=Gleisplanweb.de|publisher=Christian Stade|access-date=11 June 2023|archive-url=https://web.archive.org/web/20230407175434/https://gleisplanweb.eu/Maps/Berlin2.pdf|archive-date=7 April 2023|location=Kranenburg|language=de,en|date=11 December 2022}}

| tracklength_km =

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| tracks =

| gauge = {{Track gauge|sg|allk=on}}

| old_gauge =

| load_gauge = {{lang|de|Kleinprofil}}

| minradius =

| racksystem =

| routenumber =

| linenumber =

| electrification = {{750 V DC}} third rail (top running)

| speed_km/h =

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| website =

| map = {{U1/U15 (Berlin U-Bahn)}}

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| map_state = collapsed

| embedded =

}}

The U15 was a line on the Berlin U-Bahn. Originally the U3 running between Wittenbergplatz and Uhlandstraße, it became a branch of the U1 in 1993 as part of the reorganisation of the network following the reopening of the U2.

On December 12, 2004, it was renumbered as the U1.