Arthur Wellesley, 1st Duke of Wellington (1769–1852), Irish soldier, statesman, and Prime Minister of the UK

Wellesley College, private women's liberal arts college in Wellesley, Massachusetts

Wellesley, Massachusetts

Wellesley High School, public high school in Wellesley, Massachusetts

Richard Wellesley, 1st Marquess Wellesley (1760–1842), Irish peer, statesman, and Governor-General of India

The Vickers Wellesley, 1930s single-engine medium bomber of the Royal Air Force

The community of Wellesley, in the township of Wellesley, Ontario, Canada

Arthur Wellesley, 8th Duke of Wellington (born 1915), British soldier

Arthur Wellesley, Marquess of Douro (born 1945), British businessman

Henry Wellesley, 1st Baron Cowley (1773–1847), Irish diplomat

Gerald Wellesley, 7th Duke of Wellington (1885–1972), British soldier and diplomat

Henry Wellesley, 6th Duke of Wellington (1912–1943), British soldier

Arthur Wellesley, 4th Duke of Wellington (1849–1934), British soldier

Arthur Wellesley, 2nd Duke of Wellington (1807–1884), British politician

Arthur Wellesley, 5th Duke of Wellington (1876–1941), British soldier

Henry Wellesley, 3rd Duke of Wellington (1846–1900), British soldier and politician

Arthur Wellesley, Earl of Mornington (born 1978), British businessman

Lord George Wellesley (1889–1967), British soldier

Wellesley, Ontario, township in Canada

Elizabeth Wellesley, Duchess of Wellington (1820–1904), Mistress of the Robes

Charles Wellesley (1808–1858), British politician

Lady Elizabeth Wellesley (born 1918), British socialite

Province Wellesley, Penang known in Malay as Seberang Prai

Wellesley marriage, defunct term for (not necessarily sexual) same-sex cohabitation, see also Boston marriage