Gunsel may refer to:

• Austin Gunsel (1909-1974), interim commissioner of the National Football League
• Irfan Günsel (born 1981), Turkish Cypriot businessman
• Suat Günsel (born 1952), billionaire Turkish Cypriot entrepreneur, businessman and founder of the Near East University

• Secret Four
• Secret Friends
• Secret Garden (Bruce Springsteen song)
• Secret Garden (film)
• Secret Garden (K-drama)
• Secret Garden (outdoor nursery)
• Secret Garden (South Korean TV series)
• Secret Garden (T'Pau song)
• Secret Girlfriend
• Secret (Goto Maki)
• Secret Green
• Secret Group of Al Qaeda's Jihad in Europe
• Secret Heart Beat
• Secret Heart (disambiguation)
• Secret Heart Essence of Vimalamitra
• Secret Hello
• Secret (helmet)
• Secret Histories
• Secret History of Kangxi
• Secret History (TV documentary series)
• Secret house against the world
• Secret Identities
• Secret Identities: The Asian American Superhero Anthology
• Secretin-cholecystokinin test
• Secretin family