WMCA may refer to:

• WMCA (AM), a radio station operating in New York City
• West Midlands Combined Authority, the combined authority of the West Midlands metropolitan county in the United Kingdom
• World Mosquito Control Associationin Corona, California (USA)
• Wikimedia Canada, the official Canadian chapter of the Wikimedia Foundation

• Winflp
• WinFLP
• Winford
• Winford Boynes
• Winford, Isle of Wight
• Winforms
• Winframe
• Winfred
• Winfred J. Sanborn
• Winfred Omwakwe
• Winfred Tubbs
• Winfree Observatory
• Winfrey Academy
• Winfrey Leadership Academy
• Winfrey Leadership Academy for Girls
• Winfrey School
• Winfride
• Winfried Berkemeier
• Winfried Bischoff
• Winfried Brugger
• Winfried brugger
• Winfried Denk
• Winfried Franz Wilhen Bischoff
• Winfried Glatzeder
• Winfried Hassemer