Delfinen (Swedish for dolphins) may refer to:

• HSwMS Delfinen, various Swedish Navy ships
• Delfinen-class submarine, a Royal Danish Navy class
  • HDMS Delfinen (S326), the lead ship of the class, launched in 1956
• Delfinen [ sv], a Swedish royal barge constructed in 1787; see List of oldest surviving ships
• Coop Norrbotten Arena, Luleå, Sweden, an indoor sporting arena originally named Delfinen
• Delfinen, the student newspaper of Aarhus University, Aarhus, Denmark

This disambiguation page lists articles associated with the title Delfinen.
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