Sir William Thomas Makins, 1st Baronet DL (16 March 1840 – 2 February 1906) was a barrister and Conservative politician.
His directorships included the Great Eastern Railway, and the Gas Light and Coke Company.
He was appointed Lieutenant-Colonel of the 3rd (Stratford) Essex Artillery Volunteer Corps in 1869 and was Honorary Colonel of the unit and its successors from 23 April 1874.
He was created baronet of Rotherfield Court, Henley-on-Thames in 1902, as part of King Edward VII's Birthday Honours.
Their daughter Mary married Sir Eugene Clauson, and their third son Paul succeeded to the baronetcy and became Lord Lieutenant of Oxfordshire.