The National Fab Lab Network Act of 2026 establishes a nonprofit organization to create a nationwide network of digital fabrication facilities, commonly known as fab labs, which provide public access to advanced manufacturing equipment like 3D printers and computer-controlled machines. The corporation aims to place at least one fab lab in each Congressional District, prioritizing underserved communities, while serving broader goals of workforce development, STEM education, business creation, and innovation. The organization will be governed by a board of 7 to 15 members appointed by congressional leaders and representing diverse geographic regions, tribal communities, educational institutions, and the existing Fab Foundation. The corporation will coordinate operations across fab labs, develop standards and guidelines, distribute funding to establish new facilities, and maintain a national registry of participating labs. The bill does not specify federal funding amounts or timelines for implementation, leaving those details to be determined through the corporation's operations and partnerships with public and private stakeholders.