William Ritchie

William Ritchie may refer to:


 * William Ritchie (barrister) (1817–1862), Advocate-General of Bengal
 * William Ritchie (editor) (1781–1831), editor of The Scotsman
 * William Ritchie (footballer) (1895–?), Scottish footballer
 * William Ritchie (moderator) (1758–1830), Moderator of the General Assembly of the Church of Scotland
 * William Ritchie (physicist) (1790–1837), physicist
 * William E. Ritchie (died 1943), trick bicyclist
 * William Gordon Ritchie (1918–1998), Manitoba politician
 * Sir William Johnstone Ritchie (1813–1892), Chief Justice of Canada
 * William Thomas Ritchie (1873–1945), Scottish cardiologist
 * Bill Ritchie (1931–2010), cartoonist
 * Bill Ritchie (politician) (1927–2014), Canadian politician
 * Billy Ritchie (1936–2016), footballer
 * Billy Ritchie (musician) (born 1944), British keyboard player and composer


 * Willie Ritchie (golfer) (1884–1966), Scottish golfer