Perez v. Brownell, 356 U.S. 44 (1958), was a United States Supreme Court case in which the Court affirmed Congress's right to revoke United States citizenship as a result of a citizen's voluntary performance of specified actions, even in the absence of any intent or desire on the person's part to lose citizenship. Specifically, the Supreme Court upheld an act of Congress which provided for revocation of citizenship as a consequence of voting in a foreign election.