The Grimsby & Immingham Electric Railway (G&IER) was an electric light railway, primarily for passenger traffic, linking Great Grimsby with the Port of Immingham in Lincolnshire, England. The line was built by the Great Central Railway (GCR), was absorbed by the London & North Eastern Railway (LNER) in 1923, and became part of the Eastern Region of British Railways. It ran mainly on reserved track.
