Gehlen may refer to:

People with the surname

• Adolph Ferdinand Gehlen (1775–1815), German chemist
• Arnold Gehlen (1904–1976), German philosopher
• Bruno Gehlen (1871–1951), entomologist who described several species including Rhagastis meridionalis
• Kurt von Gehlen (1927–1995), German professor
• Reinhard Gehlen (1902–1979), German Nazi general, intelligence officer
  • Gehlen Organization, founded by him
• Dennis Gehlen, aka "TaKe", German gamer
• Karl Gehlen, German engineer
• Walter Gehlen, German athlete
• Duda (footballer, born 1994), Brazilian footballer born Eduardo Haas Gehlen

Locations

• Gehlen House and Barn, historic buildings in St. Donatus, Iowa, United States
• Gehlen Catholic School, in LeMars, Iowa, United States