David Smith can mean the following

• David Paul Smith, Canadian Senator, former Member of Parliament
• David Smith (academic) Early Modern Historian and Cambridge University Fellow
• David Smith (cricket player)
• David Smith (musician) Member of the Alberni Quartet
• David Smith (inventor) Inventor of Andantino
• David Smith (artist)
• David Smith (justice) Chief Justice of the Court of the Queen's Bench of New Brunswick
• David Smith (bishop) Bishop of Bradford
• David Smith (sculptor)
• David Smith (Canadian politician) Canadian Member of Parliament
• David Smith (American politician) Member of the North Carolina General Assembly of 1777
• David Smith (wrestler), aka The British Bulldog, professional wrestler
• David Smith (curler) , world champion curler
• David Smith (Australian public servant)
• David Smith (1701-1787) father of Claudius Smith