| Dumbarton East | |
| Native Name: | Gaelic; Scottish Gaelic: Dùn Breatann an Ear |
| Symbol Location: | gb |
| Symbol: | rail |
| Borough: | Dumbarton, West Dunbartonshire |
| Country: | Scotland |
| Coordinates: | 55.9426°N -4.5542°W |
| Grid Name: | Grid reference |
| Manager: | ScotRail |
| Platforms: | 2 |
| Code: | DBE |
| Original: | Lanarkshire and Dunbartonshire Railway |
| Pregroup: | Caledonian Railway |
| Postgroup: | LMS |
| Years: | 1 October 1896 |
| Events: | Opened[1] |
| Footnotes: | Passenger statistics from the Office of Rail and Road |
Dumbarton East railway station serves the town of Dumbarton in the West Dunbartonshire region of Scotland. The station is managed by ScotRail and is served by trains on the North Clyde Line, 15miles west of .
Unlike the majority of the North Clyde line stations, this is an island platform, betraying its Lanarkshire and Dunbartonshire Railway origins. At the time of electrification by British Railways in 1961, the North British Railway's formation from Bowling was abandoned (except a short spur to serve Bowling Oil Terminal), with a short link line between the North British and Caledonian formations being constructed. The North British formation is regained between Dumbarton East and station at the site of the junction between the two railways.
Four trains per hour daily go eastbound to Glasgow Queen Street and beyond and a half-hourly service westbound to both and respectively.
There are now six departures per hour from here in each direction (Mon-Sat). Westbound trains still run to Balloch and Helensburgh Central, but 2tph terminate at Dumbarton Central. Eastbound trains run to via Clydebank, via and Edinburgh Waverley (express via Clydebank). The Sunday service remains the same as in 2008, with 2tph to Edinburgh and 2tph to Glasgow Central and then onward alternately to and via eastbound and 2tph each to Balloch and Helensburgh westbound.