What is "mcilwaine"

McIlwaine is a surname. Notable people with the surname include:

• Ellen McIlwaine (born 1945), American singer-songwriter and musician
• Garry McIlwaine (born 1944), Australian politician
• George Arthren McIlwaine, South African rugby union player
• Johnny McIlwaine (1904–1980), Scottish footballer
• Richard McIlwaine (born 1950), English cricketer