Hearts of Oak

Hearts of Oak may refer to:


 * “Heart of Oak”, the official march of the Royal Navy and other navies
 * Hearts of Oak (New York militia), a volunteer military unit formed during the American Revolutionary War
 * Hearts of Oak (Ireland), an agrarian protest society in the province of Ulster, Ireland
 * Hearts of Oak (1803 play), a play by John Till Allingham
 * Hearts of Oak (1879 play), a play by James Herne and David Belasco
 * Hearts of Oak (1914 film), a 1914 film directed by Wray Physioc
 * Hearts of Oak (film), a 1924 film directed by John Ford
 * Heart of Oak (film), a 2022 film directed by Laurent Charbonnier and Michel Seydoux
 * Hearts of Oak (album), an album by the band Ted Leo and the Pharmacists
 * Hearts of Oak Benefit Society, a 19th-Century British benefit society
 * Hearts of Oak Friendly Society, a British friendly society and successor to the benefit society
 * Accra Hearts of Oak S.C., a football (soccer) club from Ghana
 * Hearts of Oak (supporters group), a football (soccer) supporters group for New York City Football Club
 * HMS Heart of Oak, one of three vessels named Heart of Oak that served the British Royal Navy
 * Hearts of Oak (campaign group), a far-right campaign group founded by Tommy Robinson