Yuanshi may refer to:

• The Yuanshi era marks the period of the rule of Emperor Ping of Han
• Yuanshi County (元氏县), Hebei, China
• History of Yuan, also known as the Yuanshi, official Chinese historical work for the Yuan Dynasty
• Yuanshi Tianzun, one of the highest deities of religious Taoism

• 102nd Infantry Division (Germany)
• 102nd Infantry Regiment
• 102nd Infantry Regiment (Imperial Japanese Army)
• 102nd Infantry Regiment (United States)
• 102nd King Edward's Own Grenadiers
• 102nd Military Base
• 102nd New York State Legislature
• 102nd (Northumberland Hussars) Anti-Tank Regiment, Royal Artillery
• 102nd (Pembroke & Cardiganshire) Field Regiment, Royal Artillery
• 102nd (Pembroke Yeomanry) Medium Regiment, Royal Artillery
• 102nd pope
• 102nd Reconnaissance Battalion of General Karel Paleček
• 102nd Regiment Indiana Infantry
• 102nd Regiment of Foot (Irish Rangers)
• 102nd Rifle Division
• 102nd Squadron
• 102nd Squadron (Portugal)
• 102nd Squadron SAAF
• 102nd (Ulster) Air Defence Regiment Royal Artillery
• 102nd US Congress
• 102nd U. S. Congress
• 102nd U.S. Congress
• 102nd US Infantry Division
• 102 Not Out
• 102 Not Out (film)