Eylau

Eylau can refer to:

• Battle of Eylau during the Napoleonic Wars in 1807
• Eylau (wargame), a 1980 board wargame that simulates the 1807 battle
• Bagrationovsk (Preußisch Eylau) in Russia, until 1945 in East Prussia, Germany
• Eylau, Texas
• Iława (Deutsch Eylau) in Poland, until 1945 in West Prussia, Germany
• French ship Eylau (1856)