Geoffrey Miller may refer to:

• Geoff Miller (born 1952), English cricketer
• Geoff Miller (diplomat) (born 193?), former Australian public servant and diplomat
• Geoff Miller (priest) (born 1956), Archdeacon of Northumberland
• Geoff Miller (public servant) (1942–2014), former Australian public servant
• Geoff Miller (publisher) (1936-2011), American co-founder, editor, and publisher of Los Angeles Magazine
• Geoffrey Miller (cricketer, born 1937), former English cricketer
• Geoffrey Miller (psychologist) (born 1965), evolutionary psychologist
• Geoffrey P. Miller, American professor of law, see List of law clerks of the Supreme Court of the United States
• Geoffrey D. Miller (born 1949), US Army Major General