Probably not. Cruise lines make their money by selling you drinks including wine. They can't do that if people bring on their own booze. While most lines will allow you to bring aboard one bottle of wine, (no hard liquor,) not a case. If they catch you they will confiscate it and give it back to you as you get off the ship. Crappy policy, but that's the way it is these days. If you want to risk breakage you might be able to get a couple of bottles aboard in luggage, or maybe not. All the lines seem to get stricter every year.
Personally, I'd much rather pay a $100 surcharge for the privilege of bringing on my own booze so I can mix my own Margaritas they way I like them.
Landlocked in Denver, but cruisin every chance we get.
Polynesia, Carib. '86
Cr. Odyssey, Scandinavia, '91, 30 Day S Pac. 2002
Crystal Harm, Aust., N.Z., '94
Royal Odyssey, AK,'96
Old Cr. Pr. Canal, '97
RCCL, Carib, 1998
Volendam, Car, 2000
Ryndam, 35 day S. Am., Antarctica, '03
Is. Pr., Canal, 2004
Statendam, 34 day China, Japan, AK '06
Cr.Pr., Carib. 08
Eurodam, Atlantic, Med. '10