Robert Welsted (1671–1735) was an English physician and classical scholar.
He matriculated from St Edmund Hall, Oxford, on 4 December 1687, and was elected in 1689 to a demyship at Magdalen College, which he held till 1698, graduating B.A.
He was then practising medicine at Bristol, where he remained for some years; when he later moved to London, he was admitted a licentiate on 3 September 1710.
[3] Welsted was admitted a Fellow of the Royal Society on 20 March 1718.
In his later years his London practice dropped away, and he relied on charity from his friend Hugh Boulter.