Zach Witkoff (born May 21, 1993) is an American businessman who co-founded World Liberty Financial (WLF), a cryptocurrency firm co-owned by the Donald Trump family.
Witkoff is the son of real estate investor and lawyer Steve Witkoff and lawyer Lauren Rappoport. He attended the University of Miami.
Witkoff co-founded World Liberty Financial (WLF), in 2024. The company is 60% owned by the Trump family. The firm established the stablecoin USD1, pegged to the United States Dollar and, as of May 2025, became the fifth largest stablecoin.
In 2022, Witkoff married model Sophi Knight at a ceremony at Mar-a-Lago, attended by Donald Trump and Ron DeSantis. They have a son, Don James Witkoff. In October 2025, Witkoff was the host of a fundraiser for U.S. Senate candidate Nate Morris in Kentucky alongside Vivek Ramaswamy.