The Great North of Scotland Railway (GNSR/GNoSR) was one of the two smallest of the five major Scottish railway companies prior to the 1923 Grouping, operating in the north-east of the country. Formed in 1845, it carried its first passengers the from Kittybrewster, in Aberdeen, to Huntly on 20 September 1854. By 1867 it owned of line and operated over a further .