Dick is used as a surname in English, German and other languages.
[1]: 240 The name can also be based on the use of the Middle English words dich, diche, dik, dike 'ditch' as a place name description.
In German, surnames with the form Dick has arisen through different sources: the adjective dick 'plump', the noun Dickicht 'thicket' used about someone living in such a location, as a patronymic surname based on Dick used as a first name or nick name, or as a variant of Dieck.
Although found in every part of Britain, the form Dick is especially common in Scotland, and it was from there, in the 17th century, that the surname was taken to Northern Ireland.
Other notable concentrations include Northumberland (146th, 1,630), Tyne and Wear (335th, 1,738), Berkshire (365th, 1,704), and in Norfolk.