ZM

ZM (and similar) may refer to:
 * Zambia, a southern African country (ISO 3166-1: )
 * .zm, Zambia's Internet top-level domain

Arts and media

 * ZM (radio station), a New Zealand broadcaster
 * Zara Moussa, a Nigerian rapper

Business

 * Zoom Video Communications, an American developer of videotelephony software (Nasdaq ticker: )

Units of measure

 * Zeptometre, an extremely small unit of length (10−21 m)
 * Zeptomolar (zM), a unit of molar concentration
 * Zettametre (Zm), an extremely large unit of length (1021 m)

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