The Secure Shell Protocol (SSH) is a network protocol for secure data communication and remote command execution. SSH may also refer to: Science and technology Saffir–Simpson hurricane scale, classifies hurricanes – Western Hemisphere tropical cyclones – that exceed the intensities of tropical depressions and tropical storms – into five categories Sea-surface height, the topography of the ocean surface Social sciences and humanities, the disciplines and communities involved in or related to this area of research and science Suppression subtractive hybridization, a genetic technique to show differentially expressed genes Su–Schrieffer–Heeger model, a physical model for a simple model for a topological insulator Organizations SSH Communications Security, a Finnish company that developed the Secure Shell protocol Secondary State Highways, branches of Primary State Highways in Washington from 1937 to 1964 IATA airport code SSH for Sharm El Sheikh International Airport, an international airport in Egypt Silver State Helicopters, a helicopter operator Transportation South Superhighway, a former official name of the South Luzon Expressway in the Philippines, now referring to the Manila-Makati segments of an expressway Languages The ISO 639-3 code for Shihhi Arabic