Cails Mills is a community in Weldford Parish, New Brunswick, located 4.26 km ENE of Bryants Corner and 3.83 km W of Fords Mills.
See also: History of New Brunswick and List of historic places in Kings County, New Brunswick.
Cails Mills had a Post Office from 1912–1964 with Jonathan Cail as first postmaster. The community was named for the family of Anthony Cail who had a mill near the mouth of the Coal Branch River and were among the earliest settlers of the community to arrive from England.