McWilliams
McWilliams is a surname that refers to:
- Alfred McWilliams (b. 1844, d. unknown), Canadian politician from Prince Edward Island
- Bill McWilliams (1910–1997), American professional baseball player
- Brendan McWilliams (1944–2007), Irish meteorologist and science writer
- Carey McWilliams (1905–1980), American author, editor, and lawyer
- Carey McWilliams (b. 1973), American author, marksman, and skydiver
- Caroline McWilliams (b. 1945), American television actress; former wife of Michael Keaton
- Christopher 'Crip' McWilliams (1963–2008), Irish nationalist; convicted of the murder of the LVF leader Billy Wright
- Cynthia Kaye McWilliams (contemporary), American actress
- David McWilliams (contemporary), American college football coach
- David McWilliams (1945–2002), Northern Irish singer, songwriter, and guitarist
- David McWilliams (b. 1966), Irish economist, commentator, and author
- Derek McWilliams (b. 1966), Scottish professional football player
- Edmund McWilliams (contemporary), American diplomat and ambassador
- Eric McWilliams (b. 1950), American professional basketball player
- Fleming McWilliams (contemporary), American singer and songwriter
- Jackie McWilliams (b. 1964), Irish Olympic field hockey player
- Jeremy McWilliams (b. 1964), Irish motorcycle road racer
- Joe McWilliams (1904–1996), American inventor, industrial engineer, and nationalist
- John D. McWilliams (1891–1975), American politician from Connecticut; U.S. Representative 1943–45
- Johnny McWilliams (b. 1972), American professional football player
- Larry McWilliams (b. 1954), American professional baseball player
- Monica McWilliams (b. 1954), Northern Ireland academic and politician
- Patrick McWilliams (b. 1963), Irish author
- Peter McWilliams (1949–2000), American marijuana activist and writer
- Rhys McWilliams (b. 1985), English professional ice hockey player
- Roland Fairbairn McWilliams (1874–1957), Canadian politician from Manitoba
- Taj McWilliams-Franklin (b. 1970), American professional women’s basketball player
- Tom McWilliams (b. 1957), American songwriter and producer
- William McWilliams (1856–1929), Australian politician from Tasmania
- Wilson Carey McWilliams (1933–2005), American political scientist and writer
- Dr. Endurance L'Urhobo McWilliams British/Urhobo ISO-KOOL Artist 1969 Onajeti