Sulfan, Sulphan, Sulfane or Sulphane may refer to:

• Sulfan (Baker & Adamson), a stabilized form of sulfur trioxide traded by Baker & Adamson
• Nisso sulfan, an alternative name for sulfur trioxide
• Sulfane (organic), a modern systematic name for the older trivial name thioether
• Sulfane/Sulphane, an alternative name for hydrogen sulfide
• Yara Sulfan [de], an agricultural mineral fertilizer with 24% nitrogen and 6% sulfur

• Endosulfan
• Sulfanyl
• Disulfan (drug) aka Disulfiram, Tetraethylthiuramdisulfid, or Antabuse
• Disulfan (inorganic compound) [de] aka Hydrogen disulfide