Cardewlees is a hamlet in Cumbria, England, about 4.5 miles southwest of Carlisle. It is located northwest of Dalston (of which parish it belongs to), north of Cardew and northeast of Thursby, just off the A595 road. A windmill located here has been converted into apartments. Thursby Manor is located nearby.Cardewlees hit the headlines in 1862 when resident Sarah Carrick poisoned herself with phosphorus paste, or rat poison.
A farming community, in 2002 it was reported that the land system had undergone conversion from a vaccary system into a land-only type of tenure. Archaeologically it is known for The Cardewlees Altar.