The Baynes Baronetcy, of Harefield Place in the County of Middlesex, is a title in the Baronetage of the United Kingdom.

[2] He was Major-Commandant of the Uxbridge Gentlemen and Yeomanry Cavalry, which he helped to raise.

The title descended from father to son until the death of his great-great-grandson, the fifth Baronet, in 1971.

As of 2023 the title is held by his grandson, the eighth Baronet, who succeeded his father in 2005.

The heir apparent to the baronetcy is Alasdair William Merriman Baynes (born 1993).