Lieutenant-General Terence O'Loghlin (1764 – 15 August 1843) was an Irish British Army officer.
Born in County Clare in the Kingdom of Ireland, he joined the army in 1782 as an ensign in the 45th Foot.
He served in the Flanders Campaign during the French Revolutionary Wars and was wounded twice.
[1] He transferred into the Life Guards and rose to the rank of colonel by 1808.
He was breveted as a major general and commanded the First Cavalry Brigade of the Duke of Wellington's army.