ZS, Zs, zS, or zs may refer to:
Businesses and organizations Azzurra Air (IATA airline designator ZS) Zombie Squad, a disaster preparedness group ZS Associates, a consulting firm Zscaler, an American cloud security company that trades on the Nasdaq as ZS Greens of Serbia (Zeleni Srbije), a political party in Serbia Healthy Serbia (Zdrava Srbija), a political party in Serbia
Places American Samoa (World Meteorological Organization country code ZS) Szczecin, a city in Poland identified by the vehicle registration code ZS
Science and technology Zeptosecond, a unit of time equal to 10−21 seconds Zeptosiemens, an SI unit of electric conductance Zettasiemens, an SI unit of electric conductance Zettasecond, a unit of time equal to 1021 seconds Zs, the category for "Separator, Space" characters in the Unicode standard
Other uses Zs (band), a musical group from Brooklyn, New York, United States List of Latin-script digraphs#ZHungarian zs, the last (forty-fourth) letter of the Hungarian alphabet, following z MG ZS, a small family car MG ZS (crossover), a Chinese SUV South Africa (aircraft registration prefix ZS)
See also SZ (disambiguation)