What is man?

What is man? may refer to:

In literature

 * Psalm 8, verse 4 begins with this question and may be the origin thereof.
 * What Is Man? (Twain essay), essay written by Mark Twain and published in 1906
 * What Is Man? (King essay), essay written by Martin Luther King Jr. and published in 1959
 * What Is Man?, a book by Wolfhart Pannenberg
 * What is Man, a 1970 book by David Jenkins
 * What Is Man? a 1923 work by John Arthur Thomson

In philosophy

 * What is man?, a philosophical thought by Thomas Hill Green
 * What is man?, a theme found in B. F. Skinner's 1971 book Beyond Freedom and Dignity

In music

 * "What Is Man", a song by Johnny Cash appearing on the album Personal File
 * "What Is Man?", a four-part composition by Charles Lloyd and Billy Higgins appearing on the 2004 album Which Way Is East