The Presidential Advisory Commission on Election Integrity (PEIC or PACEI), also called the Voter Fraud Commission, was a Presidential Commission established by Donald Trump that ran from May 11, 2017 to January 3, 2018. The Trump administration said the commission would review claims of voter fraud, improper registration, and voter suppression. The establishment of the commission followed Trump's false claim that millions of illegal immigrants had voted in the 2016 presidential election, costing him the popular vote. Vice President Mike Pence was as chair of the commission and Kansas Secretary of State Kris Kobach was vice chair and day-to-day administrator.

On June 28, 2017, Kobach, in conjunction with the Department of Justice, asked every state for personal voter information. The request was met with significant bipartisan backlash; 44 states and the District of Columbia declined to supply some or all of the information, citing privacy concerns or state laws.

Trump's creation of the commission was criticized by voting rights advocates, scholars and experts, and newspaper editorial boards as a pretext for, and prelude to, voter suppression. At least eight lawsuits were filed accusing the Commission of violating the law.

On January 3, 2018, Trump abruptly disbanded the commission; he repeated his baseless claims of election fraud and citing many states' refusal to turn over information as well as the pending lawsuits. The commission found no evidence of voter fraud. At that time, Trump asked that the investigation be transferred to the U.S. Department of Homeland Security (DHS), which already holds much of the requested state voter data and oversees immigration records. The acting DHS press secretary said that Kobach would not be advising or working with DHS, and the White House said it would destroy all the state voter data collected by the Commission.