Dismantle Iran’s Proxy Act of 2025 This bill requires the President to take actions against Ansarallah, the Iran-backed movement in Yemen also known as the Houthis. Specifically, the bill requires the President to designate Ansarallah as a foreign terrorist organization. (Among other things, such a designation allows the Department of the Treasury to require U.S. financial institutions to block transactions involving the organization.) The President must also (1) impose property blocking sanctions on Ansarallah and any foreign person who is an official, agent, or affiliate of the organization; (2) submit to Congress a determination as to whether three specified individuals are officials, agents, or affiliates of Ansarallah; and (3) submit to Congress a strategy to degrade the offensive capabilities of Ansarallah and to restore freedom of navigation in the Red Sea and nearby waterways.