George Hassell (1888–1928) was an American mass murderer.

George Hassell may also refer to:

• George Hassell (actor) (1881–1937), American stage and film actor
• George Hassell (footballer) (1923–2012), Australian rules footballer

• John Hawkins (Master of Pembroke College, Cambridge)
• John Hawkins (rower)
• John Hawxhurst
• John Hay, 2nd Lord Hay of Yester
• John Hay Air Base
• John Haybittle
• John Hayden (bishop)
• John Hayden (ice hockey)
• John Hayden Jr.
• John Haydn Davies
• John Hayes (earth scientist)
• John Hayes (footballer, born 1936)
• John Hayes (Queensland politician)
• John Hayes (rugby league)
• John Hay Forbes
• John Hay Goodlet
• John Hay Management Corporation
• John Hay Munro
• John Haynes, Jr.
• John Haynes (publisher)
• John Hay (priest)
• John Hayres
• John Hays (Jew)
• John Hay (university vice-chancellor)
• John Hayward (British politician)