William Edwardes, 1st Baron Kensington

William Edwardes, 1st Baron Kensington (c. 1711 – 13 December 1801) of Johnston Hall, Pembrokeshire, was a British landowner and a long-standing Member of Parliament.

Edwardes was the second surviving son of Francis Edwardes, Member of Parliament for Haverfordwest, and Lady Elizabeth Rich, only daughter of Robert Rich, 5th Earl of Warwick and heiress of her nephew Edward Henry Rich, 7th Earl of Warwick.

The Edwardes family owned extensive lands in Pembrokeshire, Carmarthenshire and Cardiganshire and on the death of his cousin the 7th Earl in 1721 and his elder brother in 1738, William inherited the additional estates of the Rich family, which included Holland House in Kensington.

In 1776 he was created Baron Kensington in the Peerage of Ireland.

His tenure as member for Haverfordwest was based on an arrangement with Lord Milford, the member for the Pembrokeshire county constituency, whose family treated Haverfordwest like a pocket borough.