Richard Clarke may be

• Richard A. Clarke, retired U.S. government official and expert in counter-terrorism.
• Sir Richard W. B. Clarke, U.K. civil servant.
• Richard Clarke (navigator), 16th century English privateer and navigator who made early voyages to Newfoundland.
• Richard Clarke (frontiersman) (Deadwood Dick) (1845-1930), English frontiersman and scout in the United States; inspiration for character Deadwood Dick.
• Richard Clarke (sailor), a sailor from Canada who competed at the 2000 Summer Olympics.
• Richard Clarke (vicar), (died 1634), English preacher, on the committee translating the King James version of the Bible.