Regirock (Japanese: レジロック Regirock) is a Rock-type legendary Pokémon. It is not known to evolve into or from any other Pokémon.
Along with Regice and Registeel, is is one of the three legendary golems of Hoenn.
Regirock is a large golem made of rocks. Regirock has a pattern on its face that resembles a capital letter "H". The rocks it is made of come from several different places. The reason for this is that whenever it gets damaged in battle, it searches for rocks to repair itself with. This habit also contributes to Regirock's patchwork appearance. What is even stranger is that Regirock has no internal organs.