Sir Gregory Page-Turner, 3rd Baronet (16 February 1748 – 4 January 1805)[1] was a wealthy landowner and politician in late 18th century England, serving as Member of Parliament (MP) for Thirsk for 21 years.

[3] These included a mansion and 283 acres (115 ha) of estates at Wricklemarsh (today part of Blackheath), which were sold in 1783 for £22,000 to John Cator.

That year he served as High Sheriff of Oxfordshire and then as MP for Thirsk from April 1784 until his death in 1805.

[5] Sir Gregory never lived at Ambrosden, thought the house too big and in 1767 sought to demolish part of it to make it smaller.

Their son Gregory Osborne Page-Turner (1785–1843) succeeded him to become the fourth baronet.