The Thirty-Nine Steps is a 1915 novel by John Buchan.

The 39 Steps may also refer to:

• The 39 Steps (1935 film), directed by Alfred Hitchcock
• The 39 Steps (1959 film), directed by Ralph Thomas
• The Thirty Nine Steps (1978 film), directed by Don Sharp
• The 39 Steps (2008 film), directed by James Hawes
• The 39 Steps (play), a parody by Patrick Barlow
• The 39 Steps (video game), 2013

• 39 Steps (album), by guitarist John Abercrombie, 2013
• 39 Steps (Ariolasoft), an imprint of Ariolasoft, a video game publisher