Born in the year 1986 on 11th April, in Los Angeles which is situated in California in the United States of America, Stephanie Pratt’s birth name is Stephanie Lynn Pratt. The details about her parents are not known and the particulars about her childhood days are also not available. There is also no news about how she spent the early days of her life. The only detail which is available about her family life is that she has an older brother named Spencer Pratt who is also a television personality and is known for his stint in several reality shows such as The Hill in 2007 and Celebrity Big Brother UK in 2013.

She doesn’t have any more siblings. She is known to be a student of the Crossroads School which is situated in Santa Monica in Los Angeles, California, United States of America. No further detail is available about her education and the name of her college is also not disclosed. There is no particular news about how she got interested in television or what inspired her to choose this particular career path. It is not known that whether she got this inspiration from her parents or from her older brother. 

She made her first appearance on television in 2007 when she was cast as a member of the reality show titled The Hills where she appeared as herself. She first appeared in the third season of the show and had a recurring appearance till the fifth season. During the sixth season, she became the main cast of the show and this season also marked the end of the show. During her stint on The Hills, she got involved herself in several controversies which included getting arrested for drunk driving and confession about shoplifting during an interview.

After the end of the show in 2010, she further moved on to be a part of another reality show titled Made in Chelsea where she appeared as herself in 2013. She was seen in a recurring role in the sixth season of the show and then she became the main cast for the seventh, eighth, ninth and tenth season of the show. The show is still running and currently in its eleventh season of which Stephanie is the main cast. Along with being a part of Made in Chelsea, Pratt also decided to be part of the show Celebrity Big Brother in which she appeared as herself in 2014. Her brother, Spencer Pratt was the part of the show during its previous season. In 2016, she was seen on another reality show named Celebs GO Dating in which she appeared as herself.

Talking about the personal aspect of her life, she was in a relationship with Josh Shepherd in 2014, but the relationship ended in 2015. She is currently single and there is no news of her getting engaged or having a boyfriend. It is also rumored that she has undergone plastic surgery to enhance her features. Her biography states that she has a good net worth and salary.