Rosslyn can refer to:

• Rosslyn, Gauteng, South Africa
• Rosslyn Academy, a school in Nairobi, Kenya

• Rosslyn, Queensland, a town on the Capricorn Coast in the Shire of Livingstone

• Roslin, Midlothian, Scotland
  • Rosslyn Chapel
• Rosslyn Hill, a street in Hampstead, London
• Rosslyn House, a former house in Belsize Park, London
• Rosslyn Tower, a Grade II listed house in Putney, London

• Rosslyn, Virginia, United States
  • Rosslyn Station, the Washington Metro station serving Rosslyn
• Rosslyn (Edmonton), a neighborhood in the city of Edmonton, Canada
• Rosslyn, Kentucky, United States
• Rosslyn, Ontario, Canada

• Earl of Rosslyn
• Rosslyn Range, American long jumper

• Roslin (disambiguation)
• Roslyn (disambiguation)
• Rosslyn Park (disambiguation)