Ashwell & Morden railway station is a wayside railway station in Cambridgeshire, England. Close to the border with the county of Hertfordshire, it is in the hamlet of Odsey, slightly north of the Icknield Way, a Roman Road that is now the A505. It is 41 miles (65.98 km) down the line from London King's Cross. Train services are currently operated by Thameslink.

The villages it serves, as well as Odsey, are Ashwell, Guilden Morden and Steeple Morden, although it is located a couple of miles from each of them and linked to them only by minor roads.

Opened as Ashwell station by the Royston and Hitchin Railway (R&HR) on 21 October 1850, the R&HR was later absorbed by the Great Northern Railway (GNR). The name was changed to Ashwell and Morden on 1 April 1920 three years before the GNR amalgamated with several other railways to form the London and North Eastern Railway during the Grouping of 1923. The station then passed on to the Eastern Region of British Railways on nationalisation in 1948.

When Sectorisation was introduced in the 1980s, the station was served by Network SouthEast until the Privatisation of British Railways.

Off-peak, all services at Ashwell & Morden are operated by Thameslink using Class 700 EMUs.

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

• 2 tph to Brighton via London Bridge and Gatwick Airport (semi-fast)
• 2 tph to Cambridge

During the peak hours, the station is served by a number of additional stopping services between Cambridge and London King's Cross, operated by Great Northern.

On Sundays, the service is reduced to hourly in each direction.

Preceding station	National Rail			Following station
Baldock		Thameslink Hitchin to Cambridge Line		Royston
		Great Northern Hitchin to Cambridge Line Peak Hours Only

• Jowett, Alan (2000). Jowett's Nationalised Railway Atlas (1st ed.). Penryn, Cornwall: Atlantic Transport Publishers. ISBN 978-0-906899-99-1. OCLC 228266687.

• Train times and station information for Ashwell & Morden railway station from National Rail