Keil
Keil is a surname, and may refer to:
- Alfredo Keil (1850–1907), Portuguese romantic composer and painter
 - Alphonso Keil (1944–2008) Samoan-born rock & roll musician, founding member of The Zodiacs and The Kavaliers
 - Birgit Keil (born 1944), German prima ballerina
 - Carl Friedrich Keil (1807-1888), German Biblical scholar
 - Eliza Keil, Samoan-born singer and member of Keil Isles
 - Ernst Keil, (1816–1878), German publisher and founder of Die Gartenlaube
 - Herma Keil, Samoan-born rock & roll singer of the 1960s and lead singer of the Keil Isles
 - Francisco Keil do Amaral (1910–1975), Portuguese architect, composer, painter, and photographer
 - Franz von Keil (1862–1945), Austrian naval officer
 - Freddie Keil (19??–1994), Samoan-born rock & roll singer and lead singer of the Keil Isles
 - Heinrich Keil (1822–1894), German classical philologist
 - Johann Friedrich Karl Keil (1807–1888), German Bible commentator
 - Josef Keil (1878–1963), Austrian historian, epigrapher, and archaeologist
 - Klaus Keil (1934–2022), American astronomer and father of Mark Keil
 - Lillian Kinkella Keil (1916–2005), American flight nurse
 - Mark Keil (born 1967), American tennis player and son of Klaus Keil
 - Olaf Keil(born 1934), Samoan-born guitarist, founder of the Keil Isles and custom guitar builder
 - Peter Keil (born 1942), German painter
 - Susanne Keil (born 1978), German hammer thrower
 - William Keil (1812–1877), American founder of communal religious societies
 
See also
- Keil (company), technology company
 - Keil School, Dumbarton, Scotland
 - Keils, Jura, Argyll and Bute, Scotland
 - Kiel, Schleswig-Holstein, Germany