William Augustus may refer to:

• Prince William, Duke of Cumberland (1721–1765),
• William Augustus (translator), 18th-century weather forecaster and translator
• William Augustus, Duke of Brunswick-Harburg (1564–1642),

• The Center School (Seattle)
• The Centers Network
• The Centinel of the North-Western Territory
• The Centipede
• The Centipede's Dilemma
• The centracare health system
• The Central African Republic
• The Central Bank
• The Central Bank Of Oman
• The Central Bank of the Bahamas
• The Central Bank of The Bahamas
• The Central Council of Physical Recreation
• The Central Institute London
• The Central Intelligence Agency
• The Central Reserve Bank of El Salvador
• The central science
• The Central Sikh Temple
• The Centre
• The Centre at Golden Ring
• The Centre (Evansville)
• The Centre for Independent Studies
• The Centre for the Study of Muslim-Jewish Relations
• The Centre (Livingston)
• The Centre of Attention
• The Centre of the Heart