Short answer, as everyone else already said: No.
Long answer: Theoretically, using an adapter, like Chris mentioned, but you'd either be using a cheap adapter that would seriously limit what you could do with the lens, or a very expensive custom-made adapter with electronics and optics. Neither are great options.
Camera systems from different companies are of course designed so that you can only use their lenses on their cameras ('third-party' companies excepted)... however it's possible to adapt some lenses to some lens mounts. Sometimes this is fairly easy, for example M42 screw-mount lenses will easily adapt to Pentax, Canon, Minolta/Sony or Olympus SLRs with a simple metal adapter. The Canon EF mount can take Nikon lenses with an adapter, or Pentax lenses with modification. But because of the spacing of the Nikon F mount, Nikon SLRs can only really take lenses designed for that mount.