Sheyla Almeida Hershey (born December 19, 1979) is a Brazilian-born housewife living in Houston, Texas. She is known for her extremely large breast implants. In May 2008, after 8 operations, she had a recorded breast size of 34FFF. By the end of January 2009, after having another operation in her native Brazil, she was reported to be a size 38KKK.

On July 14 2010, Hershey was reported to be suffering from a staph infection in both breasts following her most recent surgery. Although her implants have been removed, the infection may also necessitate breast removal.