Ludham is a village and civil parish in the English county of Norfolk, in The Broads, at the end of a dyke leading to Womack Water and flowing into the River Thurne. It lies to the East of Ludham Bridge, which is on the River Ant. It covers an area of and had a population of 1,301 in 582 households at the 2001 census. For the purposes of local government, it falls within the district of North Norfolk.
The village gave its name to a Ham class minesweeper, HMS Ludham and also, in geology, to an age/stage (the Ludhamian) in the British regional subdivision of the Pleistocene Series/Epoch. It also effectively gives its name to the preceding age/underlying stage known as the Pre-Ludhamian.