1443

1443 (MCDXLIII) was a common year starting on Tuesday of the Julian calendar, the 1443rd year of the Common Era (CE) and Anno Domini (AD) designations, the 443rd year of the 2nd millennium, the 43rd year of the 15th century, and the 4th year of the 1440s decade. As of the start of 1443, the Gregorian calendar was 9 days ahead of the Julian calendar, which was the dominant calendar of the time.

• July 22 – Zürich is defeated in the Battle of St. Jakob an der Sihl.

• January 27 – Albert, Duke of Saxony (died 1500)
• February 23 – Matthias Corvinus of Hungary (died 1490)
• May 17 – Edmund, Earl of Rutland, brother of King Edward IV of England and King Richard III of England (died 1460)
• May 31 – Margaret Beaufort, mother of Henry VII of England (died 1509)
• December 5 – Pope Julius II (died 1513)
• Rodolphus Agricola, Dutch scholar and humanist (died 1485)
• John de Vere, 13th Earl of Oxford, English leader (died 1513)
• Piero del Pollaiuolo, Italian painter (died 1496)
• Philip II, Duke of Savoy (died 1497)
• Ygo Gales Galama, Frisian warlord and rebel (died 1492)
• Anne Beauchamp, 15th Countess of Warwick (died 1449)

• Zeami – Japanese actor.