Historic figures: H
- General Douglas Haig (1861 - 1928) - British World War One commander
- Edmond Halley (1656 - 1742) - 17th-18th century astronomer, scientist
- Harold II (Godwineson) (c.1020 - 1066) - last Anglo-Saxon king of England
- Arthur 'Bomber' Harris (1892 - 1984) - World War Two British bomber commander
- William Harvey (1578 - 1657) - 17th century physician, discovered circulation
- Stephen Hawking (1942 - ) - Theoretical physicist, cosmologist, and author
- Edward Heath (1916 - 2005) - 20th century Conservative prime minister
- Henry I (c.1069 - 1135) - medieval king of England, increased the monarch's powers
- Henry II (1133 - 1189) - medieval king of England, strengthened royal administration
- Henry III (1207 - 1272) - medieval king of England, fought with his nobles
- Henry IV (1367 - 1413) - king of England, Lancastrian usurper
- Henry V (c.1387 - 1422) - Lancastrian king of England, military hero
- Henry VI (1421 - 1471) - king of England, fought Wars of the Roses
- Henry VII (1457 - 1509) - king of England, first Tudor monarch
- Henry VIII (1491 - 1547) - Tudor king of England, initiated English Reformation
- Heinrich Himmler (1900 - 1945) - Nazi, head of the SS, architect of genocide
- Paul von Hindenburg (1847 - 1934) - 20th century German general, politician
- Emperor Hirohito (1901-1989) - Japanese emperor during World War Two
- Adolf Hitler (1889 - 1945) - leader of Nazi Germany, architect of genocide
- Ho Chi Minh (1890-1969) - 20th century Vietnamese revolutionary leader
- Thomas Hobbes (1588-1679) - 17th century political philosopher
- Homer (circa 750-650 BC) - ancient Greek author, wrote the 'Odyssey' and 'Iliad'
- Admiral Charles Howard (1536 - 1624) - defeated the Spanish Armada
- John Howard (1726 - 1790) - 18th century prison reformer
- Attila the Hun (c.410-c.453 AD) - leader of the Hunnic Empire from 440 to 453 AD
- Thomas Henry Huxley (1825 - 1895) - Victorian biologist, developed theory of evolution