OSX (disambiguation)

Look up OS X in Wiktionary, the free dictionary.

OS X is a former name of Apple's operating system macOS.

OSX or OS X may also refer to:

• DC/OSx, 1980s-era Unix operating system by Pyramid Technology
• Old Saxon (ISO 639-3 language code), an early form of Low German
• OSX, a Brazilian shipbuilding company, part of the EBX Group
• OS-X series, a series of sounding rockets built by OneSpace
• Xalapa Symphony Orchestra, from an acronym for its Spanish name Orquesta Sinfónica de Xalapa