| MACAW | Mutliple Access Collision Avoidance for Wireless 
| Others |
| MACB | Mad As Can Be
| Others |
| MACB | Mammary Artery Coronary Bypass
| Others |
| MACB | Multinational Acquisition and Contracting Board
| Others |
| MACBOOK | Macintosh Laptop
| Others |
| MACBOX | Mobile Accident Camera Box
| Others |
| MACBS | Multi Access Cable Billing System
| Others |
| MACBUS | Macintosh Business Users Society
| Others |
| MACC | Macatawa Area Coordinating Council
| Others |
| MACC | Macclesfield, Cheshire, England
| Others |
| MACC | Madison Academic Computing Center
| Others |
| MACC | Malaysian Anti Corruption Commission
| Others |
| MACC | Malaysian Anti-Corruption Commission
| Others |
| MACC | Malaysian Association of Chinese Comedians
| Others |
| MACC | Man Automotive Concessionaires Corporation
| Others |
| MACC | Management Advisory Consulting and Coaching
| Others |
| MACC | Manchester Area Conference of Churches
| Others |
| MACC | Manston Airport Consultative Committee
| Others |
| MACC | Marginal Abatement Cost Curve
| Others |
| MACC | Market Assessed Cost of Capital
| Others |
| MACC | Maryland Association of Community Colleges
| Others |
| MACC | Massachusetts Association of Conservation Commissions
| Others |
| MACC | MAssachusetts Campus Compact
| Others |
| MAcc | Master in Accountancy
| Others |
| MACC | Master of Arts in Corporate Communication
| Others |
| MACC | Maui Arts and Cultural Center
| Others |
| MACC | Memorial Athletic and Convocation Center
| Others |
| MACC | Metro Animal Care and Control
| Others |
| MACC | Metro Atlanta Chamber of Commerce
| Others |
| MACC | Metro Atlanta Cycling Club
| Others |
| MACC | Metropolitan Air Conditioning Contractors
| Others |
| MACC | Metropolitan Alliance of Connected Communities
| Others |
| MACC | Metropolitan Anarchist Coordinating Council
| Others |
| MACC | Mexican American Catholic College
| Others |
| MACC | Mexican American Cultural Center
| Others |
| MACC | MGX-8550 ATM Concentrator Configuration
| Others |
| MACC | Miami Airport Convention Center
| Others |
| MACC | Michigan Alpine Competition Committee
| Others |
| MACC | Mid Alabama Corvette Club
| Others |
| MACC | Mid America Chevelle Club
| Others |
| MACC | Mid America Cobra Club
| Others |
| MACC | Mid Atlantic Camaro Club
| Others |
| MACC | Mid Atlantic Charger Club
| Others |
| MACC | Mid Atlantic Community Church
| Others |
| MACC | Mid-America Conference of Clubs
| Others |
| MACC | Mid-Atlantic Coaster Club
| Others |
| MACC | Mid-Atlantic Cricket Conference
| Others |
| MACC | Middlecreek Area Community Center
| Others |
| MACC | Midland Area Chamber of Commerce
| Others |
| MACC | Military Aid to the Civil Community
| Others |