Tornaco may refer to:

• Tornaco, Piedmont, a commune in north-western Italy
• Tornaco Castle, a castle in southern Belgium
• De Tornaco family
• Charles Auguste de Tornaco (1763-1837), industrialist and politician
• Camille de Tornaco (1807 – 1880), Belgian politician
• Victor de Tornaco (1805 – 1875), Belgian-Luxembourgian politician and Prime Minister of Luxembourg
• Charles de Tornaco (1927 – 1953), Belgian motor racer

• Percy Kelly (artist)
• Percy Kent
• Percy King
• Percy Kipapa
• Percy Kirke (1684-1741)
• Percy Kirke (1684–1741)
• Percy Kirke (British Army officer)
• Percy Landsberg
• Percy Lansdale
• Percy Lawrie (rugby union)
• Percy Lemon
• Percy Lewis (cricketer, born 1864)
• Percy Lewis (disambiguation)
• Percy Lionel Edwin Rawlins
• Percy L. Jones
• Percy-Lobdell Building
• Percy Loomis Sperr
• Percy, Lord
• Percy Lovett
• Percy Lynsdale
• Percy Main
• Percy Main Amateurs F.C.
• Percy Main Cricket Club
• Percy Main (village)
• Percy Malone