Octo

Octo may refer to:


 * Octarians, a race based on octopuses. An Octo suffix is frequently used to name various Octarian species and machinery.
 * DJ Octavio, also known as the Octobot King.
 * Octobomber
 * Deluxe Octobomber
 * Octoling
 * Octoling (enemy)
 * Octoling (playable)
 * Octotrooper
 * Shielded Octotrooper
 * Octodiver
 * Twintacle Octotrooper
 * Deluxe Twintacle Octotrooper
 * Octosniper
 * Octoballs
 * Octostamp
 * Octostriker
 * Octocommander
 * Octocopter
 * Deluxe Octocopter
 * Missile Octocopter
 * Speedy Missile Octocopter
 * Great Octoweapons
 * Octostomp
 * Octonozzle
 * Octowhirl
 * Octomaw
 * Octobosses
 * Octo Oven
 * Octo Oven XXL
 * Octo Samurai
 * Revenge of the Octo Samurai
 * Neo Octostomp
 * Octostomp Redux
 * Octo Shower
 * Octo Shower Supreme
 * Turquoise October
 * Octosuit, the outfit set worn by the Octolings consisting of the Octoling Goggles, Octoling Armor and Octoling Boots.
 * Octolings in Octopus form


 * Octo Valley - the name of Splatoon's single-player mode.
 * Octo Valley - the location for Splatoon 2's single-player mode.
 * Octo Canyon - the name of Splatoon 2's single-player mode.
 * Octo Canyon - the location for Splatoon 2's single-player mode.
 * Octo Expansion - the name of Splatoon 2's DLC single-player mode.

Or the gear:
 * , known as Octoling Goggles❌, or Octoling Scope in Splatoon

Or the weapons:
 * Octo Shot

Or the music:
 * [[media:Octo Valley Octoling Rendezvous.ogg|Octoling Rendezvous]] - by Turquoise October
 * [[media:Octo Valley Octoweaponry (Third Phase).ogg|Octoweaponry]] - by Turquoise October
 * [[media:Octo Canyon Hub.ogg|Octo Canyon]] - by Turquoise October
 * [[media:Octo Canyon Octo Eight-Step.ogg|Octo Eight-Step]] - by Turquoise October
 * [[media:Octo Canyon Octarmaments.ogg|Octarmaments]] - by Turquoise October
 * [[Media:Octo Expansion Fly Octo Fly ~ Ebb Flow (Octo).ogg|Fly Octo Fly]] ~ Ebb & Flow (Octo) - by Off the Hook
 * Splattack! (Octo) - Dedf1sh

Or Octotune (Splatoon 2 Original Soundtrack)

Or the Octo Valley Missions
 * Octotrooper Hideout
 * Lair of the Octoballs
 * Rise of the Octocopters
 *  The Mighty Octostomp!
 * Octoling Invasion
 *  The Dreaded Octonozzle!
 * Octoling Assault
 *  The Rampaging Octowhirl!
 * Octosniper Ramparts
 * Octoling Uprising
 *  The Ravenous Octomaw!
 * Octoling Onslaught
 *  Enter the Octobot King!

Or the Octo Canyon missions
 * Welcome to Octopia
 * Sunset Octocopter
 * Into the Octo Oven
 * Enter the Octohurler
 * The Octopark
 * Octozeppelin Invasion
 * Octoling Strike
 * Fear the Octo Samurai
 * Octoseeker Shakedown
 * Octo-Resort Spring
 * Octoling Assault (Octo Canyon)
 * The Octostomp Returns
 * Octocommander Fortress
 * Octolings Ahoy!
 * The Octo Shower
 * The Octogalaxy
 * Octoling Workout