1857

1857 (MDCCCLVII) was a common year starting on Thursday of the Gregorian calendar and a common year starting on Tuesday of the Julian calendar, the 1857th year of the Common Era (CE) and Anno Domini (AD) designations, the 857th year of the 2nd millennium, the 57th year of the 19th century, and the 8th year of the 1850s decade. As of the start of 1857, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.

• Indian Mutiny; Mangal Pandey, Rani of Jhansi
• "Jingle Bells" is written and published in America

• 5 April – Alexander of Battenberg
• 14 April - Princess Beatrice of the United Kingdom; Prince Henry of Battenberg
• June 11 – Antoni Grabowski
• September 15 - William Howard Taft, twenty-seventh President of the United States (d. 1930)
• 3 December – Joseph Conrad

• December 31 - Edward Williams Clay, American artist (b. 1799)