John Hanmer, 1st Baron Hanmer

John Hanmer, 1st Baron Hanmer (22 December 1809 – 8 March 1881), known as Sir John Hanmer, Bt, between 1828 and 1872, was a British politician.

Background and education
Hanmer was the son of Thomas Hanmer, eldest son of Sir Thomas Hanmer, 2nd Baronet. His mother was Arabella Charlotte, daughter of T. S. D. Bucknell. He was educated at Eton and Christ Church, Oxford. In 1828, he succeeded his grandfather as third Baronet.

Political career
Hanmer sat as Member of Parliament for Shrewsbury between 1832 and 1837, for Kingston upon Hull between 1841 and 1847 and for Flint Boroughs between 1847 and 1872. He also served as High Sheriff of Flintshire for 1832. In 1872 he was raised to the peerage as Baron Hanmer, of Hanmer, and of Flint, both in the County of Flint.

Family
Lord Hanmer married Georgiana Chetwynd, daughter of Sir George Chetwynd, 2nd Baronet, in 1833. There were no children from the marriage. Lady Hanmer died in March 1880. Lord Hanmer died in March 1881, aged 71, and was buried at Bettisfield, Flintshire. The barony became extinct on his death while he was succeeded in the baronetcy by his younger brother, Wyndham.