Earl of Strathmore

Earl of Strathmore and Kinghorne
Quarterly 1 and 4 argent a lion rampant azure, armed and langued gules within a double tressure flory counter-flory of the second (for Lyon); 2 and 3 ermine three bows stringed palewise in fess proper (for Bowes).
Creation date	1606 1937
Peerage	Peerage of Scotland (1606) Peerage of the United Kingdom (1937)
First holder	Patrick Lyon, 1st Earl of Kinghorne
Present holder	Simon Bowes-Lyon, 19th and 6th Earl of Strathmore and Kinghorne
Heir presumptive	The Hon. John Fergus Bowes-Lyon
Subsidiary titles	Viscount Lyon Lord Lyon and Glamis Lord Glamis Lord Glamis, Tannadyce, Sidlaw and Strathdichtie Baron Bowes
Seat(s)	Glamis Castle
Former seat(s)	Gibside Streatlam Castle
Armorial motto	In Te Domine Speravi ("In Thee, O Lord, have I put my trust")

Earl of Strathmore and Kinghorne is a title in the Peerage of Scotland and the Peerage of the United Kingdom. It was first created as Earl of Kinghorne in Peerage of Scotland in 1606 for Patrick Lyon. In 1677, the designation of the earldom changed to "Strathmore and Kinghorne". A second Earldom was bestowed on the 14th Earl in the Peerage of the United Kingdom in 1937, leading to him being titled as the 14th and 1st Earl of Strathmore and Kinghorne.

Aside from the Earldoms, the Earl holds the subsidiary titles: Viscount Lyon (created 1677), Lord Glamis, Tannadyce, Sidlaw and Strathdichtie (1677), Lord Lyon and Glamis (1606), Lord Glamis (1445) and Baron Bowes (1887) of Streatlam Castle, in the County of Durham, and of Lunedale, in the County of York. An earlier creation of Baron Bowes (1815), in favour of the 10th Earl became extinct on his death in 1821. The first three are in the Peerage of Scotland; the last two in the Peerage of the United Kingdom. The eldest son of the Earl uses Lord Glamis as a courtesy title. Normally, the highest subsidiary title (in this case Viscount Lyon) would be used, but Lord Glamis is used instead to prevent confusion with the officer of arms, Lord Lyon King of Arms. The Earl is also Chief of Clan Lyon.

Elizabeth Bowes-Lyon (1900–2002), the Queen consort of King George VI from 1936 until 1952, and mother of the present Sovereign, was the daughter of the 14th Earl of Strathmore and Kinghorne.

The family seat is Glamis Castle, in Angus, Scotland. Other family seats were Gibside, near Burnopfield, County Durham and Streatlam Castle, near Barnard Castle in County Durham. The traditional burial place of the Earls of Strathmore and Kinghorne is in an aisle of Glamis parish church.