Vanessa Kay Trump (née Pergolizzi, later Haydon; born December 18, 1977) is an American model. She is the ex-wife of Donald Trump Jr., the first child of Donald Trump, the 45th and 47th president of the United States. They were married from 2005 to 2018.

Vanessa Kay Pergolizzi grew up in a townhouse on the Upper East Side of Manhattan and attended The Dwight School, a private school. Her stepfather, Charles Haydon, was a lawyer. Her mother, Bonnie Kay Haydon, ran Kay Models, a modeling agency, and is of Danish and Swedish origin. Her maternal grandfather was Danish jazz musician Kai Ewans.

Trump worked as a model in her teens and 20s. and was signed to Wilhelmina Models.

Trump appeared in a scene of the film Something's Gotta Give (2003).

In the fall of 2003, Trump and her sister Veronika opened a nightclub called Sessa.

In 2011, Trump appeared in an episode of The Apprentice, hosted by her father-in-law, Donald Trump. She also appeared in an episode of Bret Michaels: Life as I Know It (2010).^{[failed verification]}

From 2010 to 2013, Trump released her own line of handbags called La Poshett.

During her teenage years, Trump dated local street gangster Valentín Rivera, a Latin Kings gang member. According to Rivera, he ended the relationship when the New York Post published a story that Trump was in a romantic relationship with Leonardo DiCaprio (DiCaprio's publicist denied the relationship).