WAB stands for Windows Address Book (file extension for Microsoft Outlook and Exchange)
WAB stands for What a Bitch
WAB stands for Wake and Bake (marijuana)
WAB stands for Waterbury (Amtrak station code; Waterbury, VT)
WAB stands for Warhammer Ancient Battles (gaming)
WAB stands for Western Alliance Bancorporation (Phoenix, AZ)
WAB stands for Wheelchair Accessible Bus (transportation service; Singapore)
WAB stands for Western Academy of Beijing
WAB stands for Western Aphasia Battery
WAB stands for We Are Brother
WAB stands for Worked All Britain (est, 1969; amateur radio; UK)
WAB stands for Web Address Book
WAB stands for Westinghouse Air Brake Technologies Corp. (stock symbol)
WAB stands for What Another Bill
WAB stands for Wage Appeals Board
WAB stands for Western Agulhas Bank
WAB stands for When Authorized By
WAB stands for Wabash Railroad System
WAB stands for We Are Bravest (band)
WAB stands for Work Authorization Board
WAB stands for Wales Advisory Board (for Local Authority Higher Education)
WAB stands for Weak Air Blow (oilfield)
WAB stands for Wild-Ass Branch (programming bug; program flies off to endless activity; as contrasted with hanging)
WAB stands for Work Avoidance Behavior