Thomas Telford FRS, FRSE (9 August 1757 – 2 September 1834) was a Scottish civil engineer, architect and stonemason, and a noted road, bridge and canal builder.
Telford was born in Glendinning, in the parish of Westerkirk, Dumfriesshire, Scotland. His father, a shepherd, died soon after Thomas was born. Thomas was raised in poverty by his mother. At the age of 14 he was apprenticed to a stonemason, and some of his earliest work can still be seen on the bridge across the River Esk in Langholm in the Scottish borders. He worked for a time in Edinburgh and in 1782 he moved to London where (after meeting architects Robert Adam and Sir William Chambers) he was involved in building additions to Somerset House there. Two years later he found work at Portsmouth dockyard and — although still largely self-taught — was extending his talents to the specification, design and management of building projects.
In 1787, through his wealthy patron William Pulteney, he became Surveyor of Public Works in Shropshire. Civil engineering was a discipline still in its infancy, so Telford was set on establishing himself as an architect. His projects included renovation of Shrewsbury Castle, the town's prison (during the planning of which he met leading prison reformer John Howard), the Church of St. Mary Magdalene, Bridgnorth and another church in Madeley.