Jakob Walter (September 28, 1788 – August 3, 1864) was a German soldier and chronicler of the Napoleonic Wars. In his later years, he wrote an account of his service in the Grande Armée, including a detailed account of his participation in the campaign of 1812, Napoleon's Russian campaign against Tsar Alexander I. This, together with Joseph Abbeel's diary, form the only known records of that campaign kept by common soldiers.