Thomas Southwell, 2nd Baron Southwell PC (Ire), FRS, styled The Honourable from 1717 until 1720, was an Irish peer, politician and freemason.
- Occupation
- politician
- Position held
- Member of Parliament in the Parliament of Ireland, Member of the Privy Council of Ireland
- Born
- January 7, 1698
- Died
- November 19, 1766