This article defines the Garmsiri Language Group. It is a continuum of closely related dialects extending from the Halilrud river valley in the north down to the Strait of Hormuz in the south. It incorporates Jirofti, Kahnuji, Rudbāri, Manujāni, Minābi, Bandari, and Baškardi. Some of the dialects investigated here as Garmsiri had long been known as (outer) Baškardi, a designation Ilya Gershevitch gave to the vernaculars outside of Baškard proper (which he divided into North and South Baškardi). Since the same term, Garmsiri, has been in use for the related dialects spoken in Lārestān of Fārs, it would be possible to designate the entire band of the dialects stretching along an upward-facing crescent from Lārestān to Halilrud as the Garmsiri...