The Northwest Straits Marine Conservation Initiative Reauthorization Act of 2025 reauthorizes and amends the Northwest Straits Marine Conservation Initiative Act to protect and restore the marine ecosystem of the Northwest Straits region. It updates the commission's membership, goals, and duties, emphasizing collaboration, data collection, and support for local marine resources committees. The Act authorizes appropriations of $10,000,000 annually for fiscal years 2026 through 2031, and continued funding thereafter, to support the initiative's goals.