The United States Ambassador-at-Large for International Religious Freedom is the ambassador-at-large who heads the Office of International Religious Freedom in the U.S. Department of State.

[3] On July 28, 2014, President Barack Obama nominated Rabbi David Saperstein for the position.

On December 15, 2014, the Senate confirmed him to the office, making him the first non-Christian to hold this post.

[4][5][6] On July 26, 2017, the White House announced the nomination of Sam Brownback, then-Governor of Kansas to fill the vacancy in the office.

[8] He was confirmed to the position on January 24, 2018, on a 49–49 vote of the Senate, with Vice President Mike Pence breaking the tie in favor of Brownback.