The following is a list of locomotives of the London and North Eastern Railway as of 31 December 1947.
This date is significant because nationalisation of the Big Four occurred the next day, 1 January 1948.
BR allocated numbers in March 1948 (in the meantime there were a few withdrawals and new construction).
In terms of locomotive taxonomy, the LNER had a superficially simple classification system that got a bit messy under close examination.
Where it has been considered prudent therefore, subclasses have been identified rather than classes in order to link to the appropriate articles.