John Abercromby (British Army officer)

Sir John Abercromby
John Ambercromby (left=18) at his father's death (1801)
Born	2 April 1772
Died	14 February 1817 (1817-02-15) (aged 44)
Allegiance	United Kingdom
Rank	Lieutenant-General
Commands held	Bombay Army Madras Army
Battles/wars	Napoleonic Wars
Awards	Knight Grand Cross of the Order of the Bath

Lieutenant-General Sir John Abercromby or Abercrombie GCB (2 April 1772 – 14 February 1817) was a British Army officer and politician.

He became Order of the Bath (GCB) in 1815, and that year became a Member of Parliament (MP) for Clackmannanshire, until 1817.

John Abercromby was born on 2 April 1772. He was the son of Lt.-Gen. Sir Ralph Abercromby and Mary Abercromby, 1st Baroness Abercromby. Abercromby had three sisters, Anne, Mary, and Catherine. His elder brother George was born in 1770, while he also had two younger brothers. James was born in 1776, while his brother Alexander was born in 1784.

The second son of Sir Ralph Abercromby, Abercromby entered the army in 1782 as a cornet in the 4th Dragoons, transferring in 1786 as an ensign in the 75th Highland Regiment. He gained promotion to lieutenant in 1787, and to captain in 1792. He subsequently served as an ADC to his father during campaigns in Flanders (1793–1794), the West Indies (1796–1797), Ireland (1798) and against the Batavian Republic (1799). Promoted to colonel in 1800, he left his father's staff, but became deputy adjutant general and served under General Hutchinson in the force led by his father to Egypt (1801). His father died in battle at Alexandria; but John continued to render admirable service, for which General Hutchinson commended him.