Anthony or Antony Williams may refer to:

Government

• Anthony Williams (diplomat) (1923–1990), former British Ambassador to Cambodia, Libya and Argentina
• Anthony Williams (Medal of Honor) (1822–?), American Civil War sailor and Medal of Honor recipient
• Anthony Williams, candidate in the United States House of Representatives elections in Illinois, 2010
• Anthony A. Williams (born 1951), mayor of Washington D.C., 1999–2007
• Anthony D. Williams (politician) (1799–1860), Liberian politician
• Anthony H. Williams (born 1957), Pennsylvania State Senator

Others

• Anthony Williams (bishop) (1892–1975), Anglican bishop in the Caribbean
• Anthony Williams (comics), Welsh artist
• Anthony Williams (footballer) (born 1977), Welsh former goalkeeper
• Anthony Williams (musician) (1931–2021), Trinidadian music pioneer and inventor of the steel pans
• Anthony Williams or Roc Raida (1972–2009), American turntablist and hip hop deejay
• Anthony Williams, American fashion designer and winner of season 6 of Project Runway All Stars
• Antony Williams (technologist), English physicist, Microsoft software architect, designer of OLE and COM; see Component Object Model
• Anthony D. Williams (author) (born 1974), co-author of Wikinomics
• Antony John Williams (born 1960), Welsh chemist, president of ChemSpider
• Anthony Williams (criminal), British criminal known as 'Lord Williams of Tomintoul'