7Z (disambiguation)

7z is a data compression and archival file format.

7z, 7Z, or 7-Z may also refer to:

• 7-Zip, an open source file archive software for 7z and other formats
• Clerget 7Z, a seven-cylinder rotary aircraft engine
• The IATA code for former airline Halcyonair
• The IATA code for current airline Ameristar Jet Charter