Berthold IV may refer to:

• Berthold IV, Duke of Zähringen (1125–1186)
• Berthold IV, Duke of Merania (died in 1204)

• The Black Moses
• The Black Mountain (film)
• The Black Mountain Road
• The Black Mountain (Tor Ghar)Tribes
• The Black Night
• The Black Opera - Symphoniae Mysteriorum in Laudem Tenebrarum
• The Black Opera: Symphoniae Mysteriorum in Laudem Tenebrarum
• The Black Opera – Simphoniae Misteriorum in Laude Tenebrarum
• The Black Opera – Symphoniae Misteriorum in Laude Tenebrarum
• The Black Orchid
• The Black Orchid (1958 film)
• The Black Orchid (former Chicago night club)
• The Black Orchid (nightclub)
• The Black Order (disambiguation)
• The Blackout (2009 film)
• The Blackout (2013 film)
• The Blackout (album)
• The Blackout (band)
• The Blackout Part II: Mock Debate
• The Blackout Part I: Tragedy Porn
• The Blackouts (1979 band)
• The Blackout (stable)
• The Black Owl
• The Black Paintings
• The Black Panther (1921 film)