Newark Northgate railway station (alternatively Newark North Gate) is on the East Coast Main Line serving the market town of Newark-on-Trent, Nottinghamshire, England. It is 120 miles 8 chains (193.3 km) down the line from London King's Cross and is situated on the main line between Grantham to the south and Retford to the north. The station is Grade II listed.

Newark-on-Trent is a market town, 25 miles (40 km) east of Nottingham. Newark has another station, Newark Castle, operated by East Midlands Railway and closer to the town centre.

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The station is on the Great Northern Railway Towns Line from Peterborough to Doncaster which opened on 15 July 1852, the easier to construct Fens Loop Line via Boston and Lincoln had opened two years earlier.

The station opened without any ceremony. The first train of passengers from the north arrived at 6.38 am and those from the south arrived at 8.05 am. The buildings comprised a booking-office, cloak room, first and second class ladies’ and other waiting rooms, and a large refreshment room 51 feet (16 m) by 21 feet (6.4 m), and a smaller one 21 feet (6.4 m) by 14 feet (4.3 m). The platforms were 435 feet (133 m) long, with awnings provided for 50 feet (15 m) of their length. There was a coal depot, goods warehouse and sheds to accommodate 4 locomotives.

The station became a junction in 1879 with the opening of the Great Northern Railway branch to Bottesford, built as a northern extension of the Great Northern and London and North Western Joint Railway which opened at the same time. Services from Newark were provided to Northampton or Leicester and also to Nottingham. Services onto the joint line from Newark were withdrawn by 1922. The line was much used for through goods, especially between Newark and Northampton. The joint line closed in 1962 except for isolated fragments, but the Newark to Bottesford Junction section survived until 1988.

On 9 July 1928, King George V and Queen Mary arrived at the station from King's Cross where they were received by the 6th Duke of Portland.

The short connection to the Newark Castle to Lincoln line was opened in 1965 by British Rail to maintain a link between the East Coast Main Line and Lincoln following the closure of the branch from the latter to Grantham. This remains in use today by trains to Lincoln and Grimsby.

The station is just south of the Newark Flat Crossing, one of the few remaining flat railway crossings in the UK. The East Coast Main Line is crossed by the Nottingham-Lincoln line. Trains on the East Coast Main Line not calling at Newark Northgate have to slow from 125 miles per hour (201 km/h) to 100 miles per hour (160 km/h) at the crossing. There are plans to grade-separate the crossing by providing a flyover for east–west services, with a shallow enough gradient to accommodate freight trains. A key geographical constraint on the construction of a flyover will be the proximity of the site to the River Trent and the A1 trunk road. The benefits of a flyover would include higher capacity on both the East Coast Main Line and the Nottingham-Lincoln line, for both passengers and freight; journey time improvements; and a more reliable timetable. Network Rail's final Route Utilisation Strategy for the East Midlands estimated that a flyover would have a benefit:cost ratio of 1.4, with further benefits which could not be taken account of in the standard project appraisal procedures. The RUS recommended that the provision of a flyover at Newark was further developed in Control Period 4 (2009–2014) to refine the infrastructure costs and potential benefits, with the possibility of constructing it in Control Period 5 (2014–2019).

The station has 3 platforms and is served by trains operated by London North Eastern Railway and East Midlands Railway. Platform 1 serves intercity trains to Doncaster, York, Leeds, Hull, Newcastle, Edinburgh and Glasgow, platform 2 to Peterborough and London, and platform 3 to Lincoln and London.

The typical off-peak service in trains per hour is:

• 2 tph to London King's Cross
• 1 tp2h to York
• 1 tp2h to Lincoln (non-stop)
• 1 tph to Edinburgh Waverley via Newcastle
• 1 tph to Lincoln (stopping)

The station is also served by limited intercity services to Glasgow, Leeds and Hull as well as a limited service to Nottingham which reverses at the station and continues via the Nottingham to Lincoln Line.

Preceding station	National Rail			Following station
Grantham		London North Eastern Railway London to York/Lincoln		Retford
				Lincoln
Peterborough		London North Eastern Railway London to Edinburgh		Doncaster
Terminus		East Midlands Railway Newark to Grimsby		Collingham
Newark Castle Limited Service
	Disused railways
Claypole		Great Northern Railway East Coast Main Line		Carlton on Trent
Cotham		Great Northern Railway Nottingham to Newark		Terminus
		Great Northern Railway Leicester Belgrave Road to Newark

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There has been significant ambiguity about the correct form of the station's name. Physical signage on and around the station refer to "Newark Northgate" whilst some booking systems refer to "Newark North Gate". On exiting the station, the old British Rail sign says just "Northgate" and road signs towards the station say 'Northgate' along with local businesses and the bus companies.

There are three car parks in the immediate area for the railway station. They are operated by the railway car parks and National Car Parks (NCP).

Railway Northgate Car Park - 289 spaces

NCP Northgate Car Park - 371 Spaces

Of the three main car parks in the area, the NCP and the Railway car parks are the most conveniently situated for the railway station facilities.

• Listed buildings in Newark-on-Trent

• Body, G. (1986), PSL Field Guides - Railways of the Eastern Region Volume 1, Patrick Stephens Ltd, Wellingborough, ISBN 0-85059-712-9
• National Rail
• NCP Newark Northgate Station Car Park

• Media related to Newark Northgate railway station at Wikimedia Commons
• NCP Newark Northgate Station Car Park