Brigadier-General Andrews Windsor (1678–1765), of Southampton, was a British Army officer and politician. He was born the fourth son of Thomas Hickman-Windsor, 1st Earl of Plymouth and was the child of his father's second marriage to Ursula Widdrington, daughter of Sir Thomas Widdrington, Lord Chief Baron of the Exchequer. He was styled "The Honourable". His younger brothers were , MP and Thomas Windsor, 1st Viscount Windsor. He joined the army as a Cornet in the Royal Horse Guards in 1698, and was promoted captain and then lieutenant-colonel in the 1st Foot Guards in 1703, as a brevet-colonel in 1706 and colonel in 1709–15 in the 28th Foot. He was finally made brigadier-general in 1711.