Sir Thomas Tyrwhitt Jones, 1st Baronet FRS (1 September 1765 – 26 November 1811)^[1] of Stanley Hall, Shropshire, was a British politician.

Tyrwhitt was born on 1 September 1765. He was the eldest son of Captain John Tyrwhitt, RN, of Netherclay House, Bishop's Hull, Somerset, and the former Katherine Booth, daughter and heiress of the Very Rev. Peniston Booth, Dean of Windsor and Katherine (née Jones) Booth (a daughter of the Revd Canon Edward Jones).^[2] Among his siblings was Richard Tyrwhitt, a barrister who married Elizabeth Lipyeatt.^[3]

He was educated at Winchester and Christ Church, Oxford. He succeeded his cousin Sir Thomas Jones in 1782, adopting the additional surname of Jones in 1790.^[2]

He was the Member of Parliament for Weymouth and Melcombe Regis from 1790 to June 1791. Jones subsequently represented several other constituencies. He was MP for Denbigh Boroughs from January 1797 to 1802; Athlone from 22 August 1803 to 1806; and Shrewsbury from 1807 to 26 November 1811. He was created a baronet on 3 October 1808.^[2]

He was elected a Fellow of the Royal Society in 1800.^[4]

He married Harriet Rebecca, the daughter of Edward Williams of Eaton Mascott, Shropshire, with whom he had three sons and two daughters,^[2] including:^[3]

• Sir Thomas John Tyrwhitt-Jones, 2nd Baronet (1793–1839), who married Eliza Walwyn Macnamara, the youngest daughter of John Macnamara, of Saint Kitts, West Indies, in 1821.^[3]
• Charles Tyrwhitt-Jones (1801–1876), who married Emily Halliday, daughter of Adm. John Richard Delap Tollemache and Lady Elizabeth Stratford (a daughter of the 3rd Earl of Aldborough), in 1819.^[3]
• Harriet Emma Tyrwhitt-Jones (d. 1820), who married John Mytton in 1818.^[5]

He died on 26 November 1811 at his residence, Clarence Lodge near Roehampton, now in south-west London. He was succeeded by Sir Thomas John Tyrwhitt Jones, 2nd Baronet, MP for Bridgnorth and High Sheriff of Shropshire for 1816–1817.