- ZAB stands for ZukunftsAgentur Brandenburg GmbH
- ZAB stands for Zoning Adjustments Board (Berkeley, CA)
- ZAB stands for Zinc-Air Battery
- ZAB stands for Zweckverband Abfallverwertung Bazenheid (German; Swiss waste disposal company)
- ZAB stands for Zaragoza Air Base (Spain)
- ZAB stands for Zukunft-Ausbildung-Berufswahl (German: Future Training, Career Choices)
- ZAB stands for Zusammen Aktiv Bleiben (German: Stay Active Together; Munich, Germany)
ZAB