The Borough of Swindon coat of arms reflects the heritage of Swindon and the surrounding area. It is made up of elements with specific relevance to the borough and has evolved over time as the borough itself has changed.

The original coat of arms was adopted in 1901. This was replaced by a new coat of arms for the Borough of Thamesdown in 1974, which was itself replaced upon the creation of the unitary authority in 1997.

Borough of Swindon (1900-74)

The town of Swindon as we know it (effectively an amalgamation of Old Town with ‘New’ Swindon) was officially created on 22 January 1900, when Queen Victoria granted a Charter of Incorporation - incidentally, the last she created before her death.

The creation of the new municipal borough necessitated the creation of a borough coat of arms. A competition was organised and a committee sitting on 18 March 1901 chose two designs from those submitted.

The final version - a combination of those two designs - was produced by the College of Heralds and approved at a meeting on 27 June 1901.

At the same meeting, the motto ‘Salubritas et Industria’ (Health and Industry) was adopted, and the Mayor was requested to “kindly furnish a correct drawing of a modern GWR locomotive for the use of the Herald’s College”.

The significance of the individual elements featured in the arm is as follows:

• The locomotive is a the Great Western Railway (GWR) 4-2-2 ‘White Horse’ (No. 3029), which had been built in Swindon in 1891
• The red and blue quarters represent ‘Old’ and ‘New’ Swindon
• The three crescents are from the coat of arms of the Goddard family - lords of the manor of Swindon from 1560 - who were closely associated with the development of Old Town
• The three castles similarly derive from the coat of arms of the Vilett family, lords of the manor on which ‘New’ Swindon was founded
• The mitre represents Odo, Bishop of Bayeux, to whom William the Conqueror gave Old Town in 1066 (as is recorded in the Domesday Book)
• The winged wheel signifies 'swift travel' - another reference to the railway
• The strong arm and crossed hammers illustrate the motto (Health and Industry)
• The helmet surmounting the shield indicates the rank of the person or persons to whom the arms have been granted - in this case ‘fourth and last degree’, i.e. gentlemen and esquires.

Borough of Thamesdown (1974-97)

The Swindon motto of 'Salubritas et Industria' (Health and Industry) was retained, but it was necessary to design a new coat of arms. This incorporated elements from both the old Swindon arms and the Highworth Rural District arms, which had been adopted in 1968:

• The River Thames is represented by four blue and white waves, and the green background of the shield represented the Downs
• The three crescents of the Goddard family are retained
• The castle of the Vilett family (which, on the Highworth arms also represented Liddington and Barbury Castles) remain from the previous Swindon arms
• Above the shield, a stockaded crown on a hill represents Highworth
• At the top, a swan wearing a black and silver circlet represents both the Thames and the prominent Warneford family of Highworth
• Two iron horses holding hammers support the shield; these represent Swindon’s railway heritage

It is perhaps surprising to note that there is no locomotive featured.

Borough of Swindon (1997 to present)

The Borough of Swindon unitary authority, which covers the same geographical area as the old Thamesdown Borough Council, was created in April 1997.

Its coat of arms, which was designed by Robert Noel, Bluemantle Pursuivant of the College of Arms, incorporates elements from the previous coats of arms for the boroughs of Swindon, Thamesdown and Highworth:

• Castles are again featured, as reference to the Vilett family and to Liddington and Barbury Castles
• The hammers are also retained to represent Swindon industry and to commemorate the ‘Hammerman Poet’ - South Marston-born Alfred Williams
• Sheaves of wheat are incorporated - reference to the fertile farm land of the old Highworth Rural District
• Above the shield, the crowned hill, and the swan which originally represented the River Thames and the Warneford family, are retained, although the swan now stands on a motor wheel to represent the motor industry
• The supporting horses of the Thamesdown arms have now evolved wings – representing ‘inspiration and knowledge’
• A GWR locomotive makes a welcome return to the arms – arguably Swindon’s most famous engine: 4-6-0 King George V (No. 6000), which was built in 1927