North and South Western Junction Railway

The North and South Western Junction Railway (NSWJR) was a short railway in west London, England. It opened in 1853, connecting Willesden on the London and North Western Railway (LNWR) with Brentford on the London and South Western Railway (LSWR). After a difficult start it became an important freight route and that usage continues today. A passenger service linked LSWR stations with the North London Railway, and a branch was built to Hammersmith.

Part of the original main line survives between South Acton Junction and a point near Willesden Junction. It carries the heavily used Richmond to Stratford passenger service, and the whole of the main line remains an important freight connection. However, the Hammersmith branch has closed and no regular passenger service remains on the southern section of the main line.