Lauren was born Greg Lauren Dana Smith in New York City, New York, into a family of Belarusian-Jewish descent, and is the nephew of renowned fashion designer Ralph Lauren. Lauren graduated with a B.A. in Art History at Princeton University in 1991. On November 1, 2003, he wed Showgirls star Elizabeth Berkley in Cabo San Lucas, Mexico. Like Lauren, Berkley is Jewish. Elizabeth gave birth to a son, Sky Cole Lauren, in Los Angeles July 20, 2012.
In 2011, he launched his fashion brand named after himself with a ready-to-wear collection for men and women.