TN4 or TN-4 may refer to:

• Tennessee's 4th congressional district
• Tennessee State Route 4
• TN4, a postcode district in Tunbridge Wells, England; see TN postcode area

• Performing Rights Society
• Performous
• PERFOROMIST
• Perfosfamide
• Per Fosser
• Per Fossum
• Per Frimann-Hansen
• PerfSONAR
• Perfume (2001 film)
• Perfume Allergy
• Perfume And Piss
• Perfume and Piss
• Perfume and P**s
• Perfume bottles
• Perfume Chowk
• Perfume ~Complete Best~
• Perfume: Complete Best
• Perfume cushion
• Perfumed Cherry
• Perfumed cherry
• Perfume de Gardenia
• Perfume de Gardênia
• Perfume discography
• Perfumed wine
• Perfume hypersensitivity