Wellesley
- Arthur Wellesley, 1st Duke of Wellington
- Arthur Wellesley, 2nd Duke of Wellington
- Arthur Wellesley, 4th Duke of Wellington
- Arthur Wellesley, 5th Duke of Wellington
- Arthur Wellesley, Marquess of Douro
- Boston marriage
- Charles Wellesley
- Charles Wellesley, 9th Duke of Wellington
- Christian Arthur Wellesley, 4th Earl Cowley
- Elizabeth Wellesley, Duchess of Wellington
- Garret Wellesley, 7th Earl Cowley
- Gerald Valerian Wellesley (born 1770)
- Gerald Wellesley, 7th Duke of Wellington
- Graham Wellesley, 8th Earl Cowley
- HMS Wellesley
- Henry Arthur Mornington Wellesley, 3rd Earl Cowley
- Henry Wellesley, 1st Baron Cowley
- Henry Wellesley, 1st Earl Cowley
- Henry Wellesley, 3rd Duke of Wellington
- Henry Wellesley, 6th Duke of Wellington
- Lady Charlotte Wellesley
- Lady Elizabeth Wellesley
- Lady Jane Wellesley
- Lord Charles Wellesley
- Lord George Wellesley
- Province Wellesley
- Richard Wellesley, 1st Marquess Wellesley
- Richard Wellesley, 6th Earl Cowley
- South Wellesley Islands
- Valerian Wellesley, 8th Duke of Wellington
- Vickers Wellesley
- Walter Wellesley
- Wellesley (TTC)
- Wellesley College
- Wellesley College, New Zealand
- Wellesley High School
- Wellesley Islands
- Wellesley Wilson Staples
- Wellesley, Massachusetts
- Wellesley, Ontario
- Wellesley, Queensland
- West Wellesley Islands
- William Wellesley, 2nd Earl Cowley