The Forsythe Collection refers to a collection of railway and transport ephemera owned and curated by transport enthusiast Robert Forsythe and his wife, Fiona. The collection is extensive and includes materials in three public repositories. Of the material now in public ownership or curation, the largest collection is in the National Railway Museum at York's Search Engine Archive. The central theme of their collecting is the ephemera of travel and transport, especially driven by the recognized concept of Grey Literature.