Lieutenant-Colonel Sir Henry Bayly (24 April 1790 – 31 January 1867) was a British Army officer.

Bayly was born in Bath, Somerset,1851 England Census the son of Zachary Bayly of Bideford, Devon and Sarah Bayly née Clutterbuck of Newark Park,Somerset, England, Church of England Baptisms, Marriages, and Burials, 1531-1812 where he began his career as a clerk in 1806.UK, Articles of Clerkship, 1756-1874

He served in the army at Corunna followed by the Walcheren Campaign and the Peninsular War. He lost an arm at Fuentes de Oñoro, San Sebastián in May 1811.Devizes Gazette 7 February 1867 Bayly was first married in 1817 to Mary Jolliffe, then in 1829 to Martha Fisher. His eldest son, Vere Temple Bayly, was also a soldier.The Gentleman's Magazine, Volume 222, pages 398-399

Bayly was Deputy Lieutenant of Dorset and a member of the Bath and County Club.The History of the Bath and County Club 1858-1922, Cdr A H B Day RN, 1962

Bayly died at Lyme Regis in 1867, aged 76.

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