William Talman (1650–1719) is an English architect and landscape designer.

A pupil of Sir Christopher Wren, in 1678 he and Thomas Apprice gain the office of King's Waiter in the Port of London (perhaps through his patron Henry Hyde, 2nd Earl of Clarendon).

From May 1689 until William III's death in 1702 he is Comptroller of the Royal Works, and also in 1689 William Bentinck, 1st Earl of Portland appoints Talman and George London as his deputies in his new role as Superintendent of the Royal Gardens.

In these roles, Talman works with Wren in his rebuilding of Hampton Court Palace and its gardens and, by proposing a cheaper interior decoration scheme for the new building, wins that commission over Wren's head.

Talman's principal work is recognized to be Chatsworth House, considered to be the first baroque private house in Britain, and he is possibly the architect of St. Anne's Church, Soho.

Talman is held by many to be surly, rude and difficult to get on with.

One of those who feels so is Charles Howard, 3rd Earl of Carlisle, who thus chooses John Vanbrugh, not Talman, as his architect for Castle Howard; (Vanburgh had also been Talman's replacement as Comptroller of the Royal Works in May 1702.)