The Cloud of Unknowing is a 14th-century guidebook by an anonymous English monk. It may also refer to:

Books

• Rashh-i-'Amá ("Sprinkling of the Cloud of Unknowing"), first known text of Bahá’u’lláh, founder of the Bahá'í Faith
• The title of one of the sections in Underworld (DeLillo novel) (1997)

Films

• The Cloud of Unknowing, a 2002 film by Richard Sylvarnes with Miho Nikaido and Thomas Jay Ryan

Music

• "Cloud of Unknowing", choral song cycle by Robert Kyr
• The Cloud of Unknowing (album), a 2007 album by James Blackshaw
• "The Cloud of Unknowing", song by Current 93 on their 1994 album Of Ruine or Some Blazing Starre
• "The Cloud of Unknowing", song by The Claudia Quintet on their 2004 album I, Claudia
• "Cloud of Unknowing", song by Gorillaz on their 2010 album Plastic Beach
• "Cloud of Unknowing", song by Swans on their 2016 album The Glowing Man