Richard Knowles, Knolles or Knollys may refer to:

• Richard Knollys (died 1596) (1548–1596), MP
• Richard Knolles (c. 1540–1610), English historian
• Richard Brinsley Knowles (1820–1882), nineteenth-century British journalist
• Dick Knowles (1917–2008), British politician
• Richard T. Knowles (1916–2013), United States Army general