I took this from my dream book.
Of a shark: Troubles in the near future.
Escaping from a shark: Serious illness.
Catching a shark: Affairs are running smooth.
Being kill by a shark: Will overcome obstacles.
Being bitten by a shark, but not killed: Bad results in business.
Others being bitten by a shark:Will escape serious troubles.
Hope this helped you.
dream interpretation is personal, while that is a good point Isisa, glad you posted it, in terms of your spirit animal, you need to determine it for yourself. if you feel close with them at all [or whoever you're asking it for] if the shark is a reoccurring theme in a lot of your dreams, there's a good chance it could be. but it could also be suppressed trauma, or have a deeper meaning your subcontinents it trying to tell you. meditate while thinking about the dream, the answer might come to you.