The 1st Regiment Greek Light Infantry (1810–12) was a light infantry regiment, founded as a local establishment in British service consisting mostly of Greek and Albanian enlisted men and Greek and British officers that served during the Napoleonic Wars. Later it became a regular British Army regiment as the 1st Greek Light Infantry ("The Duke of York's") (1812–16). It had no official association with the modern state of Greece or the Filiki Eteria or any Greek War of Independence groups; however, several future leaders of the War of Independence fought in its ranks, as did a number of rank-and-file klephts and armatoloi.