John Thomas Browne, 4th Marquess of Sligo, styled Lord John Browne until 1868, was an Irish politician and naval commander.
- Occupation
- politician, naval officer
- Position held
- member of the 19th Parliament of the United Kingdom, member of the 18th Parliament of the United Kingdom, member of the 17th Parliament of the United Kingdom
- Citizenship
- United Kingdom of Great Britain and Ireland
- Born
- September 10, 1824
- Died
