ZA may refer to:

• South Africa (ISO 3166 country code, from Zuid-Afrika)
• Zambia (FIPS 10-4 and obsolete NATO country code)
• Interavia Airlines (IATA airline code), an airline based in Moscow, Russia
• Zettampere (also written zetta-ampere), an SI unit of electrical current equal to 10²¹ (one sextillion) Amperes
• ZoneAlarm
• Zinc aluminium

Za may refer to

• Zettayear, a unit of time equal to 10²¹ (one sextillion) years
• Za (guilds), which were Japanese feudal trade guilds; also a Japanese term (座), usually meaning "seat" or "platform"
• Ẓāʼ, a letter of the Arabic alphabet
• "Za," a song by Supergrass from their 2002 album Life on Other Planets

za may refer to

• Zhuang language (ISO 639 alpha-2 language code)
• Slang for pizza

zA may refer to

• Zeptoampere, an SI unit of electric current equal to 10⁻²¹ (One sextillionth) amperes

Za in Mandarin (language) refers to "elder woman"; grandmother

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