Crystal Hefner (née Harris; born April 29, 1986) is an American model who was the Playboy Playmate of the Month for December 2009, and the third wife of Playboy publisher Hugh Hefner from December 2012 until his death in September 2017.

[4] In 2014, she announced a line of "intimates, athleisure and loungewear" that was co-designed with Rhonda Shear to be sold through her website.

[17] In 2016, Hefner announced on her social media outlets that she had been diagnosed with Lyme disease and toxic mold before finding her symptoms were also due to "breast implant illness".

Hefner stated that she experienced "brain fog" and "chronic fatigue" due to the implants but had them removed, which alleviated some of the symptoms.

[18] In 2020, Hefner claimed she almost died due to a fat transfer procedure considered to be plastic surgery.

[20] In an interview with The Guardian, she claimed that "Hef was on the extreme side of narcissism," and that "I had to play mind games to survive.