The 1915 Ilford rail crash occurred on 1 January 1915 when an express passenger train passed a signal at danger and collided with another passenger train that was stopped at Ilford railway station on the Great Eastern Main Line in Essex, England.

At approximately 08:40 on 1 January 1915 the crew of the 07:06 express service from Clacton to London Liverpool Street failed to see that the distant and home signals at the Ilford east signal box were at danger.

[1] The signalman tried to attract their attention by shouting and waving a red flag from the signal box, but to no avail.

The official report attributed blame to the driver of the Clacton train for his "insufficient care in noting the positions of his signals when approaching Ilford".

It also noted that the accident would have been much less likely if some form of Automatic Warning System had been in use, and recommended its introduction.