Caw Daw is the name of the place and stream that pours into the Irwell west of Radcliffe Bridge. Caw Daw in its day was probably the site of a cornmill, and there is painting in existence showing a black and white half-timbered bearing the name.

Caw Daw probably means, according to Wrights English Dialect dictionary, 'a rocky place inhabited by jackdaws'. This fits as there was until the encroachment of industry a small cliff on that side of the Irwell.