Previous Image Next Image Bosphorous, Istanbul The Bosphorus (/ˈbɒsfərəs/) or Bosporus (/ˈbɒspərəs/; Ancient Greek: Βόσπορος, Bósporos; Turkish: Like this:Like Loading... Boğaziçi) is a strait that forms part of the boundary between Europe and Asia. Share this:PrintFacebookTwitterEmailLike this:Like Loading...