Macbeth, former Scottish king and Shakespearean tragic hero

Sir Paul McCartney, musician

McDonalds, commonly known as "Maccas" in Australia

McLaren Mercedes, a Formula One Grand Prix team based in Woking, England

Steve McManaman, footballer

Michael "Macca" MacKenzie, a fictional recurring character on the australian soap opera Home and Away

Gary McAllister, former footballer and manager

Steve McClaren, ex-England football manager

Macquarie Island, Australia

Maca, a Peruvian plant, used as food and for medicinal purposes

Chris McCormack, Australian triathlete

Gary McSheffery, footballer

Lady Macbeth, the wife of Macbeth in Shakespeare's play

Macca is a common British nickname for somebody whose surname begins with the Gaelic prefix Mac or Mc (meaning "son of"). It is similar in form to Gazza, Hezza and similar nicknames that arose during the 1990s and early 21st century. People frequently referred to as Macca include:

Andrew McLeod, Australian rules footballer and two-time Norm Smith Medallist

Heather Mills, Sir Paul McCartney's second wife, (see, for example, Private Eye, 25 May 2006; London Evening Standard, 8 August 2006 - "Lady Macca's battle royal"), who was also referred to as Mucca (Sunday Times, 13 August 2006 - "Macca v Mucca: the hidden agenda"; London Lite, 25 January 2007 - "Lady Mucca meets Princess Michael)

The Shin Megami Tensei video game series, in which Macca is the name of a form of currency