Interstellar organizations are groups or entities that operate across multiple star systems, often involving various planets and civilizations. These organizations can include trade alliances, scientific collaborations, or military coalitions, aiming to facilitate cooperation and communication among different species and cultures in the universe. Such organizations may be depicted in science fiction, with examples like the United Federation of Planets from Star Trek or the Galactic Republic from Star Wars. They often address challenges like resource management, conflict resolution, and technological exchange, promoting peace and prosperity in a vast and diverse cosmos.