Chadwick \ch(a)-dwi-ck, chad-wick\ as a boy's name is of Old English origin, and the meaning of Chadwick is "dairy farm of Ceadda". Surname and place name. In modern use, this name is sometimes taken as a full form of Chad. Chadwick has 1 variant form: Chadwyck. View a list of the 2 names that reference Chadwick.