Portadown Railway Station serves the town of Portadown in County Armagh, Northern Ireland.

The station is located on the Belfast-Dublin railway line. The original station opened in 1842, and the present station opened in 1970. It is currently NI Railways 6th busiest station with over 1.1 million passengers in the 2023/24 financial year

The original Portadown station was sited half a mile east of the present station and opened on 12 September 1842, replacing a temporary station at Seagoe that had opened the preceding year. The Portadown station was moved to the present location in 1848 then reverted to its original site between 1863 and 1970. Goods traffic ceased on 4 January 1965.

The present station opened in 1970, replacing a large and largely redundant station. At the time (1970) the station was called Portadown - Craigavon West, a title that was quietly dropped after the "new city" Craigavon failed to materialise. The layout of the 1970 station was modified in 1997 to allow bi-directional working on all three platforms. The lines to Cavan via Armagh (closed 1957), and Derry via Dungannon and Omagh (closed 1965) diverged immediately west of the present station.

In 2012, work began on a major refurbishment of the station. A new, modern building was constructed and a footbridge replaced the subway. The refurbishment was completed in 2013.

The station has three platforms. After the station upgrade being completed in late May 2013 both platforms 1, 2 and 3 have lifts and have disability access. Platform 3 is usually used for storage of a NIR train but one departs from this platform occasionally towards Belfast. Platform 1 is for all trains south, to destinations such Dublin Connolly, Dundalk Clarke and Newry while Platform 2 and 3 are used for Belfast bound services, both express and stopppers.

This is the terminus for most services on the Belfast-Newry railway line. Four services operate beyond here to Newry on weekdays and Saturdays. There is a half-hourly service to Belfast Grand Central in the other direction. On Sundays, this service reduces to hourly toward Belfast Grand Central, with no NIR services to Newry.

An hourly Enterprise service runs to Dublin Connolly or Belfast Grand Central every weekday and Saturday, while a bi-hourly service operates on Sundays.

This line can be popular with rugby fans connecting at Dublin Connolly for the DART to Lansdowne Road. The line is also used by rail passengers changing at Dublin Connolly onto the DART to Dún Laoghaire for example or travelling to Dublin Port for the Irish Ferries or Stena Line to Holyhead, and then by train along the North Wales Coast Line to London Euston and other destinations in England and Wales.

Preceding station		Northern Ireland Railways		Following station
Lurgan		Northern Ireland Railways Belfast-Newry		Terminus or Scarva
Belfast Grand Central or Lurgan (Sundays only)		Enterprise Belfast-Dublin		Newry
	Proposed Services
Terminus		All-Island Strategic Rail Review Mullingar-Portadown Line		Armagh
Terminus		All-Island Strategic Rail Review Derry-Portadown Line		Dungannon
	Historical railways
Lurgan Line and station open		Ulster Railway Belfast-Portadown		Terminus
Terminus		Ulster Railway Portadown-Clones		Richhill Line and station closed
Terminus		Portadown, Dungannon and Omagh Junction Railway Portadown-Omagh		Annaghmore Line and station closed
Terminus		Dublin and Belfast Junction Railway Portadown-Drogheda		Tanderagee Line open station closed

There is a possibility of re-opening of the line from Portadown to Armagh railway station. Government Minister for the Department for Regional Development, Danny Kennedy MLA indicates railway restoration plans.

The Armagh railway line has been listed in proposed plans to reopen the line.

The all-island rail review draft suggested that Portadown once again become a major interchange between the current Dublin-Belfast Main line, proposed lines such as the single tracked Mullingar-Portadown Line via Armagh, Monaghan, Clones, and Cavan and the dual tracked Derry~Londonderry-Portadown Line via Dungannon, Omagh and Strabane. Portadown would also become an inland freight terminal serving connections to Rosslare Europort, Dublin Port and Larne Harbour.

The All-Island Rail Review draft also includes 29 other recommendations for railways across the Island of Ireland and it is said that it will take at least 25 years to complete. It would cost in the range of €36.8bn/£30.7bn (as of 2023) and be split between both regions. 75% by the Republic of Ireland and 25% by Northern Ireland.

No plans as of May 2024, have gone about implementing this review.

Translink's Ulsterbus and Goldliner services operating from just outside Portadown railway station:

Preceding station		Ulsterbus		Following station
Portadown Church Street		Ulsterbus 61 Armagh-Portadown		Seagoe Craigavon Area Hospital
Terminus		Ulsterbus 75 Portadown - Dungannon		Portadown High Street
Portadown High Street		Ulsterbus 75a Dungannon - Craigavon Hospital		The Birches Roundabout
Terminus		Ulsterbus 65 Portadown - Loughgall - Armagh		Portadown Church Street
Preceding station		Goldline		Following station
Lurgan Loughview Park & Ride Lough Road		Goldline 271 Belfast - Cavan		Richhill Village
Lurgan Loughview Park & Ride Lough Road		Goldline 251 Belfast - Armagh		Richhill Village
Lurgan Loughview Park & Ride Lough Road		Goldline 251a Belfast - Armagh		Richhill Village

• 
  Class 3000 awaiting departure to Bangor 9 May 2012
• 
  Cross Border Mail Train in Portadown 15 July 1972
• 
  The Enterprise Train approaching Portadown from Dublin on the 15 April 2014
• 
  Portadown Platform 1 and Car Park 28 August 2015
• 
  Entrance to Portadown Station May 2016
• 
  The Enterprise Train arriving into Portadown (Craigavon West) from Dublin on 10 June 1972
• 
  NIR extended 4017 on test after receiving 3 additional intermediate carriages.