There isn't an "official" name for the phobia; however a couple of possibles are: falainadolopsovovphobia or orcusphobia. The first is from the Greek; usually phobias come from the Greek so that's more "traditional", orcusphobia is from the Latin - and is a lot easier to say!
Cetaphobia or Mobyphobia is an irrational fear of whales. This fear is believed to have been induced to some extent by movies like Free Willy and Finding Nemo. Its a rare condition which surprisingly has no presence in Inuit people who actually hunt for whales.