In a recent article Professor J. R. Hulbert has disputed the traditional assignment of Sir Gawain and the Green Knight, and of the alliterative romances generally, to the West Midland dialect of Middle English. He contends that the lack of sufficient criteria for distinguishing West Midland from East Midland, and the lack of documents from the Northwest Midland area, make it impossible to determine whether Gawain was composed in the East or in the West; we are justified, he says, only in saying that it is a North Midland text. It is the purpose of the present article to refute Professor Hulbert's argument in so far as it concerns Gawain, this and the other poems of the same manuscript being the only alliterative works he discusses in detail, and to show that there is quite sufficient evidence to permit us to assign it to the Northwest rather than to the Northeast Midland dialect.