The 1st General Field Marshal Count Lacy's, His Majesty King of the Hellenes' Neva Infantry Regiment () was an infantry regiment of the Russian Imperial Army. It was known by different names for much of its existence but most of its designations included "Neva Infantry Regiment." It served in several conflicts, including the Great Northern War, Seven Years' War, the Russo-Swedish War of 1808–1809, the Russo-Turkish War of 1877–78, and the Russo–Japanese War. By 1914, the 1st Neva Infantry Regiment was part of the 1st Infantry Division, and it fought in World War I before being dissolved in 1918, after the events of Russian Revolution.