The Tyneside Electrics were the suburban railways on Tyneside that the North Eastern Railway and the London and North Eastern Railway electrified using the third rail system. The North Tyneside Loop was electrified from 1904 onwards and formed one of the earliest suburban electric networks; the South Tyneside line to South Shields via Pelaw was electrified in March 1938. British Railways converted these lines to diesel operation in the 1960s: the line to South Shields in January 1963 and the North Tyneside lines in June 1967 when the electrical supply infrastructure and the rolling stock had become life expired. In addition, the system was losing passengers and suffering from costly vandalism. Since the late 1970s, much of the system has been converted to form the Tyne and Wear Metro.

The North Eastern Railway (NER) was an English railway company. It was incorporated in 1854 by the combination of several existing railway companies. Later, it was amalgamated with other railways to form the London and North Eastern Railway at the Grouping in 1923. Its main line survives to the present day as part of the East Coast Main Line between London and Edinburgh.