An SOS Battle is a kind of battle introduced in [[Generation VII]] wherein [[wild Pokémon]] calls for help from allies, turning a one-on-one wild battle to a two-on-one battle. [[Totem Pokémon]] always calls for help and their calls are always answered. Non-Totem Pokémon can also call for help; however, its call is not always answered.
Most Pokémon can summon allies of the same [[Pokémon (species)|species]], but some can summon other Pokémon in their [[List of Pokémon by evolution family|family]], and some can summon other unrelated Pokémon. For some species, the Pokémon that a wild Pokémon can call varies with location.