Zack or Zach may refer to:
People
- Zach (surname), various people
- Zack (surname), various people
- Zack (personal name), lists of people and fictional characters named Zack, Zach, Zac, Zak or Zakk
- Záh (gens) or Zách, a gens (clan) in the Kingdom of Hungary
Places
- Zack, Texas, a formerly populated place
- Zach (crater), on the Moon
Arts and entertainment
- Zack (play), a 1920 play by Harold Brighouse
- Zack, a novel by William Bell
Others
- Tropical Storm Zack (1992), a tropical storm that did not make landfall
- Typhoon Zack (1995), a Category 4 typhoon that hit the Philippines and Vietnam
See also
- Zacks, a surname
- ZAC (disambiguation)
- Žač, a village in Kosovo
- Zac, a list of people with the given name
- Zak (disambiguation)