Chelsea Charms (born March 7, 1976 in the Twin Cities of Minnesota) is the stage name of an American big-bust model. She is best known for her extremely large breasts, certainly amongst the largest in the world and achieved through polypropylene string breast implants. The string implants irritate the breast pocket which, in turn, promotes the production of fluid and subsequent growth of the breasts.

Chelsea's bust size is 153XXX which is fairly typical of the hugely over-stated stats used by big-busted feature dancers. Her breasts weigh 31 pounds (14 kilograms) each. Because of the nature of her string implants, Chelsea's breasts are continually expanding (by about 25 millimeters a month) so she has to regularly visit her surgeon in Houston to have excess fluid drained from them in order for her back to cope with the increasing weight.

She was a natural D cup and began developing in the fourth grade. She has had breast augmentation surgery three times. The first enlarged her to an E cup. The second to an HH. Both were saline bags. The third surgery implanted the polypropylene string. In some cases of breast augmentation via the polypropylene method, the breasts may grow at different paces or at a dangerously accelerated rate. In her case, they have grown in unison, however, the pace has steadily slowed over the years. The initial string content was equivalent to 2500cc. Her doctor estimates the growth has increased the size of each breast to over 7000cc.

When asked if her back hurts, she replied, "No, but exercise is the key." She loves to read, averaging about one book a week. Her favorite authors are Ha Jin, Anne Rice and Charles Dickens.

In her appearance at the 2005 Adult Entertainment Expo and on her website Chelsea announced that her breasts had reached 10,000 cc each.