NIA

• Institute of Public Accountants
• NIAS (disambiguation)
• Nanotechnology Industries Association
• National Immigration Administration
• National Immigration Agency
• National Indoor Arena
• National Infrastructure Commission
• National Institute of Aerospace
• National Institute of Ayurveda
• National Institute on Aging
• National Insurance Academy
• National Intelligence Agency (Gambia)
• National Intelligence Agency (disambiguation)
• National Investigation Agency
• National Iraqi Alliance
• Nature Improvement Area
• Net income attributable
• Neural Impulse Actuator
• Nguzo Saba
• Nia (album)
• Nia (fitness)
• Nia (fungus)
• Nia (given name)
• Nigerian Institute of Architects
• Nile Air
• Nimba Airport
• Noi Bai International Airport
• Northern Ireland Assembly
• Nuclear Industry Association
• Project NIA
• SS Nia