Charles Kay Ogden (1 June 1889 – 21 March 1957) was an English linguist, philosopher, psycholinguist and writer. He is a well-known book writer about the controlled language called Basic English. He is known for his work with I. A. Richards on "The Meaning of Meaning" (1923). He also translated "Tractatus", a book by Ludwig Wittgenstein, into English.