Grade I and II* listed buildings in Halton (borough)

In the United Kingdom, listed buildings are structures that have been placed on the Statutory List of Buildings of Special Architectural or Historic Interest. These buildings are deemed to be of national importance and therefore worthy of preservation. The listing system is administered by Historic England in England (though other bodies manage it in other parts of the UK).

Within the listing system, buildings are graded to reflect their relative importance. Grade I listed buildings are those considered to be of exceptional interest, Grade II* are particularly important buildings of more than special interest, and Grade II are buildings of special interest, warranting every effort to preserve them.

In Halton, a borough in Cheshire, England, Grade I and II* listed buildings represent a small subset of the built environment but are significant for their architectural merit, historical associations, or cultural significance. These buildings showcase various periods of Halton's history, ranging from medieval structures to later industrial and civic buildings.

The specific number and details of Grade I and II* listed buildings in Halton are subject to change as new discoveries are made or reassessments occur. Details for individual listings, including address, brief description, and reasons for listing, are available from Historic England's online database, the National Heritage List for England. This list is the official and definitive source of information on listed buildings in England.