The 47th (Lancashire) Regiment of Foot was an infantry regiment of the British Army, raised in Scotland in 1741. It served in North America during the Seven Years' War and American Revolutionary War and also fought during the Napoleonic Wars and the Crimean War. Under the Childers Reforms it amalgamated with the 81st Regiment of Foot (Loyal Lincoln Volunteers) to form the Loyal Regiment (North Lancashire) in 1881.

The regiment was raised in Scotland by Colonel Sir John Mordaunt as Sir John Mordaunt's Regiment of Foot in 1741. In 1743, Peregrine Lascelles was appointed Colonel and until May 1745, the regiment was employed building a military road near Loch Lomond, part of a new route from Dumbarton to Inverary.

In July, Charles Stuart landed in Scotland to launch the 1745 Rising and two companies of Lascelles garrisoned Edinburgh Castle. The remaining eight companies fought at the Battle of Prestonpans in September, when the government army was swept aside in less than 20 minutes; most of the regiment was taken prisoner, except for Lascelles who fought his way out.

Lascelles, together with Sir John Cope, commander at Prestonpans, and his deputy Thomas Fowke, were tried by a court-martial in 1746; all three were exonerated, but Cope never held a senior command again.

As part of the reforms enacted by the Duke of Cumberland, the regiment was designated the 58th Regiment of Foot in 1747, before being re-numbered 47th Regiment of Foot in 1751.

The 1748 Treaty of Aix-la-Chapelle awarded Britain sovereignty over the whole of Nova Scotia, including parts previously claimed by France. Between 1748 and 1755, conflict between British and French settlers resulted in a series of clashes known as Father Le Loutre's War; the regiment was posted there in 1750, taking part in the siege of Grand Pré, the Battle at Chignecto and the Battle of Fort Beauséjour.

During the Seven Years' War, it was part of the force under James Wolfe that captured Louisbourg in 1758, allegedly earning the nickname "Wolfe's Own". It was also present at the 1759 Battle of the Plains of Abraham, the Battle of Sainte-Foy and the subsequent siege of Quebec in April to May 1760. It then took part in the final and decisive campaign between July and September 1760 when Montreal fell. The regiment returned to Britain when the war ended in 1763.

On the outbreak of the American Revolutionary War in 1773, the 47th was posted to New Jersey. It took part in the Battles of Lexington and Concord in April 1775 and the Battle of Bunker Hill in June 1775 and the Battles of Saratoga in September 1777. The main body of the regiment was interned as part of the Convention Army and did not return home for another six years. In 1782 the regiment was given a county distinction when it was given the title the 47th (The Lancashire) Regiment of Foot. In 1791 the regiment was sent to the West Indies where it was garrisoned during much of the French Revolutionary Wars. In 1794 a second battalion was raised in Norfolk but disbanded soon afterwards.