MetroWest, formerly known as the Greater Bristol Metro, is a project to improve the rail services in Bristol, England, and the surrounding region. It was first proposed at First Great Western's Stakeholder Event in March 2008. The aim of the project is to develop half-hourly services through central Bristol which will also serve the surrounding West of England region. Transport campaigning groups Friends of Suburban Bristol Railways (FoSBR) and Transport for Greater Bristol are actively supporting the proposal, as are the three unitary authorities under the West of England Combined Authority and North Somerset Council.

The Portishead Railway is a branch line railway running from Portishead in North Somerset to the main line immediately west of Bristol, England. It was constructed by the Bristol & Portishead Pier and Railway Company, but it was always operated by its main line neighbour, and was more usually thought of as the Portishead branch or the Portishead railway.