Walter Long
Walter Long may refer to:
- Walter Long (1560/65–1610), English knight of South Wraxall and Draycot, Wiltshire, friend of Sir Walter Raleigh
- Walter Long (c. 1594–1637), his son, English knight of Wiltshire
- Sir Walter Long, 1st Baronet of Whaddon, English MP for Ludgershal, prosecuted in the Star Chamber and imprisoned in the Tower of London
- Sir Walter Long, 2nd Baronet of Whaddon, his son, English MP for Bath
- Walter Long (MP 1701–02), English MP for Calne
- Walter Long (of Preshaw), English landowner of Preshaw, Hampshire
- Walter Long (of South Wraxall), English Landowner of South Wraxall, Wiltshire
- Walter Long (1793–1867), English landowner of Rood Ashton, Wiltshire and MP for North Wiltshire
- Walter Long, 1st Viscount Long, British politician, MP, Secretary of State for the Colonies and First Lord of the Admiralty
- Walter Long (British Army officer), his son, British officer in the First World War
- Walter Long, 2nd Viscount Long, his son, British peer and soldier
- Walter Long (actor), United States character actor, starred in Laurel and Hardy films
- Walter Long (lieutenant), British second lieutenant
- Walter K. Long, artist, historian and contributor to the Mount Rushmore monument