Tofteroy is an island west of Bergen in Norway.

An island may be described as such despite the presence of an artificial land bridge, for example Singapore and its causeway, or the various Dutch delta islands, such as IJsselmonde. Some places may even retain „island“ in their names for historical reasons after being connected to a larger landmass by a wide land bridge, such as Coney Island or Coronado Island.

Conversely, when a piece of land is separated from the mainland by a man-made canal, for example the Peloponnese by the Corinth Canal, it is generally not considered an island.