Spencer Pratt (born August 14, 1983) is an American television personality known for his role as the antagonistic husband of Heidi Montag on MTV's The Hills. He is the older brother of Stephanie Pratt, who also appears on The Hills.

Pratt first appeared on television in 2005 in the short-lived reality series The Princes of Malibu. Pratt also executive produced the series and acted as a "manager-slash-publicist-slash-agent-slash-stylist" to series star Brody Jenner. Pratt's friendship with Jenner led to his role on the MTV reality series The Hills, in 2006. Pratt's relationship with fellow cast member Heidi Montag was detailed on the series, along with the tension it caused between Montag and series star Lauren Conrad.

In April 2009, Pratt and Montag joined the cast of the reality television show, I'm a Celebrity... Get Me out of Here!. After four days, the couple quit the show.