Laika or Laïka is a small uninhabited island in the Pacific Ocean, a part of the Shepherd Islands archipelago in the Shefa Province of Vanuatu.
Laika is located north of the island of Tongoa and south-east of the islet of Tefala. Laika and the other islands scattered around Tongoa were once part of a larger land mass, formed by the eruptions of the Kuwae submarine volcano, which exploded around 1475. Laika has an area of about .