ARMS: Or an Eagle neck embowed wings addorsed and inverted perched upon a Cradle therein an Infant proper swaddled Gules on a Chief dancetty of three points downward Azure a Cross moline between two Bees volant Or.
CREST: On a Wreath Or and Azure perched upon two Coils of Cable lying one upon the other a Cormorant wings elevated and addorsed proper holding in the beak a Balance or.
SUPPORTERS: On the dexter side a Griffin Or charged on the wing with three Roses Gules barbed and seeded proper and on the sinister side a Griffin Sable beak and forelegs Or charged on the wing with three Fleurs de Lys Or.
BADGE: Upon a Plate environed of a Torse Or and Azure an eagle neck embowed wings addorsed and inverted proper.

Granted 8th January 1976.
Motto 'BY FAITH AND INDUSTRY'.

The Metropolitan Borough of Knowsley was formed by the amalgamation of the Urban District of Huyton-with-Roby, the Uban District of Kirkby, the Urban District of Prescot, part of the Rural District of West Lancashire and part of the Rural District of Whiston.

The gold and blue shield is derived from the heraldry of the families of Lathom and Stanley, who were seated at Knowsley Hall and played vital roles in the history of the area. Their crest the famous Eagle and Child, is shown on the gold background of the Lathom shield and also formed the main charged in the arms of the Huyton-with-Roby UDC. The eagle also appeared in the crest of the Whiston RDC. The gold cross is the insignia of the Molyneux family of Sefton and the two bees on either side of the cross are taken from the arms of the Kirkby UDC.
The double coil of cable alludes to the distinctive industry for which Prescot is so widely known. On this stands the cormorant from the Kirkby UDC crest, holding in its beak the gold balance from the Kirkby shield. The cormorant is the well-known 'liver bird' of Liverpool, which in the Kirkby crest, indicates the important part played by Liverpool and its people in the development of modern Kirkby. The gold scales represent the industrial aspect of Kirkby.
The gold griffin is derived from the supporter of the arms of the Earls of Derby, in further reference to their seat at Knowsley and their connections with the manorial history of much of the District. It is charged with three rod roses from the arms of Huyton with Roby UDC, these also represent Lancashire County Council which played an important role in the area prior to the formation of the Metropolitan Borough. The black griffin has gold beak and legs and represents the tenure of the manor of Whiston by the Bold family. On its wing are three gold fleur-de-lys, which formed part of the royal arms of John of Gaunt, who received the Manor of Prescot in 1391. The fleur-de-lys is also a familiar emblem of St. Mary the Virgin to whom the Parsh Church of Prescot is dedicated.

ARMS: Vert issuant from the base a Trident erect pendant therefrom by the strings a Bugle Horn Or all between two Flaunches Argent on each two Bars wavy Azure.
CREST: On a Wreath of the Colours within a Crown Palisade Or upon a Red Sandstone Rock between two Sprigs of Bog Myrtle (Myrica gale Linnaeus) an Oystercatcher (Haemotopus ostralegus) rising proper.
SUPPORTERS: On the dexter side a Lion Gules gorged with a Collar dancetty of two points downward Argent and on the sinister side a Lion Argent gorged with a like Collar Gules each holding aloft in the interior forepaw a Crosier head outward Or.
BADGE: On an Oval Vert fimbriated issuant from the base a Trident erect pendant there from by the strings a Bugle Horn Or.

Motto 'BY FAITH AND FORESIGHT'.
Granted 10th August 1976.

The Metropolitan Borough of Wirral was formed by the amalgamation of the County Borough of Birkenhead, the County Borough of Wallasey, the Borough of Bebington, the Urban District of Hoylake and the Urban District of Wirral.

The shield like that of the Hoylake UDC, symbolises the Wirral peninsula, with a green background between white and blue waves for the Mersey and Dee estuaries. The gold trident is from the crest of the County Borough of Wallasey, epitomising the varied maritime activities of the Wirral - ports, shipbuilding, ferrying, fishing, sailing, seaside holiday resorts. Suspended from the trident is a conventionalised representation of the Wirral Horn, seen in the arms of Wallasey and the device of the Wirral UDC. This recalls the tenure of the Master Forestership of the Forest of Wirral by 'cornage', the actual horn eventually coming to the Stanley family.
The crest with its green and gold mantling typifies the rural parts of the Wirral and the sands of the coastal area. On a sandstone rock representing Hilbre Island and the high rocky areas of the middle of the peninsula is the oystercatcher from Hoylake's crest, the bird that is seen in huge numbers on the Deeside area particularly. Flanking the rock are two sprigs of the Bog Myrtle or Sweet Gale, typical of the area, and the whole is enclosed within a gold 'palisade' crown - a coronet of palings signifying protection of these distinctive features of the district. Five points indicate the five areas of the Borough.
The red lion is from the heraldry of Randle Meschines, Third Earl of Chester, who formed the entire Hundred of Wirral into a Forest administered by the Master Foresters from Storeton in the modern Bebington area. The crosier in the lion's paw represents St. Werburgh's Abbey at Chester, whose manors, churches or lands in Wirral included Bebington, Bromborough (site of an earlier Saxon monastery), Eastham, Childer Thornton, Raby and Neston, all or parts of which were also in Bebington Borough. The white lion recalls the Masseys, founders of Birkenhead Priory, in whose arms, as in those of the County Borough of Birkenhead, the lion and crosier appear, though in the civic arms the colour of the lion was changed. The white lion is also that of the Domvilles who held Brimstage in Bebington. For necessary distinction, each lion wears a collar in the form of a letter W.
The motto is suggested by words in the mottoes of Birkenhead (Fides - 'Faith') and Hoylake (Prospice - 'Look ahead').