Lord Smith may refer to:
- Rodney Smith, Baron Smith (1914–1998), British surgeon
- Trevor Smith, Baron Smith of Clifton (1937–2021), Liberal Democrat politician
- Chris Smith, Baron Smith of Finsbury (born 1951), Labour cabinet minister and chair of the Environment Agency
- Philip Smith, Baron Smith of Hindhead (born 1966), British Conservative politician
- Robert Smith, Baron Smith of Kelvin (born 1944), British businessman and crossbench peer
- Peter Smith, Baron Smith of Leigh, Labour councillor
Other peers surnamed Smith
edit- Arthur Smith-Barry, 1st Baron Barrymore (1843–1925), Anglo-Irish Conservative politician
- Baron Bicester, multiple people
- Earl of Birkenhead, multiple people
- Liam Booth-Smith, Baron Booth-Smith (born 1987), British political adviser and Conservative politician
- Robert Smith, 1st Baron Carrington (1752–1838), British banker
- Baron Colwyn, multiple people
- Charles Delacourt-Smith, Baron Delacourt-Smith (1917–1972), British trade unionist and Labour politician
- Robert Dixon-Smith, Baron Dixon-Smith (born 1934), British farmer and Conservative politician
- Viscount Hambleden, multiple people
- John Smith, Baron Kirkhill (born 1930), British Labour politician
- Robert Vernon Smith, 1st Baron Lyveden (1800–1873), British Whig and Liberal politician
- Donald Smith, 1st Baron Strathcona and Mount Royal (1820–1914), Scottish-born Canadian businessman