WAAS is an acronym for the Wide Area Augmentation System, an air navigation aid to supplement GPS.

WAAS, Waas, or WaaS may also refer to:

• Waas (surname)
• Mount Waas, mountain in Grand County, Utah
• Wide area application services, technology developed by Cisco Systems
• Wilmington Academy of Arts and Sciences
• Windows as a Service, a business model for Windows 10
• Workplace as a Service, a cloud-computing service
• World Academy of Art and Science, international organization

This disambiguation page lists articles associated with the title WAAS.
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