Window or Windows may refer to:

• Window, an opening in an otherwise solid, opaque surface, through which light can pass
• Window (astronomy)
• Window function, in signal processing, a function that is zero-valued outside of some chosen interval
• Oval window and Round window, two membranes between middle and inner ear
• Window (radar countermeasure)
• Windows (film), a film released in 1980
• Launch window, in aerospace, a time period in which a particular rocket must be launched
• Window period, in medicine, the time between first infection and when a test can detect that infection

• DECwindows, a version of the desktop environment Common Desktop CDE
• Microsoft Windows, a family of operating systems
• OpenWindows, a GUI for the Solaris operating system
• Window (computing), a display rectangle used by a graphical user interface (GUI)
• X Window System, an underlying protocol for creating GUI windows
• window, in computer networking, data transmission period

Music

• Window, a song by Fiona Apple from her album Extraordinary Machine
• Window (album), an album released by the The Microphones in 2000

Windows (Begriffsklärung) | Ventana (desambiguación) | Windows (homonymie) | 윈도 | Venster | Okno | Окно | Windows | Прозор (вишезначна одредница) | Windows (định hướng)