Sir Thomas Hayes (died 27 September 1617) was an English merchant who was Lord Mayor of London in 1614.
Hayes was a city of London merchant and a member of the Worshipful Company of Drapers.
On 22 December 1603 he was elected an alderman of the City of London for Bishopsgate ward.
[1] Hayes married a daughter of Robert Howse who was Sheriff of London from 1586 to 1587.
His daughter married Sir Henry Boothby, 1st Baronet.