Benjamin Knight was an industrialist.

Ben(jamin) Knight may also refer to:

• Ben Knight (actor) (born 1975), Australian actor
• Benjamin Knight (politician) (1836–1905), member of the California legislature
• Ben Knight (footballer) (born 2002), English footballer
• President Benjamin Knight (fictional), List of fictional presidents of the United States
• Invisible: The Chronicles of Benjamin Knight, film starring Alan Oppenheimer