Hi Barbs,
I agree with Giles's post, but to add some more....
I had been smoking between 20-30 a day for over 15 years but about 4 years ago I stopped

. Although I didn’t meditate at the time, I was being
mindful/aware when I had a craving. So rather than submit to the craving I watched the addiction try to get me to have a cigarette. If this sounds a bit odd ‘watching the craving’, next time you feel you’d like a cigarette stop, sit down and watch the thoughts and feelings occurring in your body.
When I did this I noticed various thoughts which made me think I needed a cigarette (time of day, completed a piece of work so a reward, thinking hard so needed a cigarette to concentrate, just finished a meal etc). Along with the thoughts I noticed that the physical feeling was like a screaming in my body, a bit like a child throwing a tantrum.
I don’t have much experience with kids, but what I know from my niece and nephew is that if you give in to a tantrum once, they’ll become more frequent

and more intense

. But if you watch them have a tantrum and let them see that it doesn’t get them what they want, then the tantrums become less and also smaller

until they completely cease

. As you can see, in essence my body/mind was simply throwing a tantrum about cigarettes which I had been giving into each time.
So, going back to your original question,
yes I think meditation would help you become more mindful/aware, which would help with above. It would help put a bit of space between you and the cravings so you can see them for what they are.
My other suggestions, irrespective of meditation would be:
- Only attempt to stop when you’re committed to doing so. I saw many people frequently half-heartedly try to stop and failing, which would turn into an ongoing cycle.
- Print yourself off something like this Benefits Timeline - NHS Quit Smoking Service for Enfield & Haringey, so you can see the benefits you’re getting. Also remind yourself that your (well I was on 20-a-day) saving £35 a week, £140 a month!
- With the above savings I would treat myself with a few small items each month, plus get my family a take-away once a week. This made me feel the effort was worth while.
- Get yourself some mints/fruit or something to ‘fill the gap’ when a craving comes up, that way you can notice the craving, accept it and change your routine, eg: have fruit or a mint instead of a ciggy, or get up and have a little walk about etc
- Stay away from other smokers (as much as possible, I know its different when friends smoke
) and alcohol. Alcohol stimulates the same area of the mind as nicotine which is why they seem nice together! But I can safely verify that alcohol without a ciggy is a pleasant experience too 
Also I listened to a free podcast Paul McKenna did (he did it for 'The Times newspaper, UK based) which anchored ‘bad thoughts’ to my cravings, which I feel helped me. But on the back of that success I got a confidence book & CD by McKenna, which did nowt for me
I appreciate this is a lengthy response but fear not, I didn’t turn into some massive anti-smoker since stopping myself. If people want to smoke, puff away! I enjoyed it when I did it, but sometimes people get to a point where enough is enough and I will always try to be encouraging if they have got to that point themselves, simply because stopping smoking is such a worthwhile thing to do, both financially and from a health perspective

.
I wish you the best of luck in your endeavour; I hope you achieve your goal

.
Paul