Rhyhorn did not originate from fanon, and more information can be found on their respective wiki(s). You may read more about it on the following wiki(s):

#111 Rhyhorn
Rhydon's artwork for Pokémon FireRed and LeafGreen.
Category Spikes Pokémon
Original Region Kanto
National Dex Nr. #111
Kanto Dex Nr. #111
Johto #211
Hoenn #176
Sinnoh #186
Kalos #050 (Coastal)
Generation 1
Pokémon Color Gray
First Appearance Pokémon Red and Blue
Latest Appearance Pokémon Omega Ruby and Alpha Sapphie
Type(s) Ground/Rock
Ability/ies Lightning Rod, Rock Head
(Hidden: Reckless)
Average Height 3'03"
Average Weight 253.5 lbs.
Evolves Into Rhydon

Rhyhorn (Japanese: サイホーン Sihorn) is a dual-type Ground/Rock Pokémon.

It evolves into Rhydon starting at level 42, which evolves into Rhyperior when traded holding a Protector.


Rhyhorn is a rhinoceros-like creature with a body covered in gray, rocky plates. Its underside and rear are smooth, and it has four short legs with two claws on each foot. It has a triangular head with narrow, red eyes, two fangs protruding from its upper jaw, and small, triangular openings on the upper sides. A spiked ridge runs along its back, and it has a single short horn on the tip of its snout. The female has a shorter horn than the male. In addition to its rocky hide, its bones are a thousand times harder than human bones.

Rhyhorn's brain is very small, giving it a one-track mind. When it runs, it forgets why it started and continues until it falls asleep. However, it may recall the reason upon demolishing something. Rhyhorn runs in a straight line due to its short legs making it inept at turning. It does not care if obstacles get in the way, merely smashing through them or sending them flying. Sometimes it may feel pain the day after a collision. Rhyhorn lives in rough terrain.


  • Prior to Generation VI, Rhyhorn and Charizard had a nearly identical cry.
  • Rhyhorn's evolution line are the only Pokémon with the Rock/Ground combination to have Ground as its primary type.
  • Rhyhorn and its evolutions are the only Rock-type Pokémon that belong in the Field Egg Group.


Its design appears to be inspired by an Indian rhinoceros, with similar plated armor, and an Uintatherium from whom it may have taken its flat head and horn, with elements of ceratopsids.

Name origin

Rhyhorn may be a combination of rhinoceros and horn. Rhy may also derive from the igneous rock called rhyolite, alluding to its Ground/Rock type combination.

Sihorn is a combination of 犀 sai (rhinoceros) and horn.


Base Stats
Sp. Attack
Sp. Defense




National Pokédex
← #110: Weezing
#111: Rhyhorn
#112: Rhydon →

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