Octo

Octo may refer to:
 * Octarians, a race based on octopuses.
 * DJ Octavio, the Octarian leader.
 * Octobomber
 * Octoling
 * Octotrooper
 * Shielded Octotrooper
 * Octosniper
 * Octoballs
 * Octostamp
 * Octostriker
 * Octocopter
 * Twintacle Octotrooper
 * Great Octoweapons Large mechanical robots that serve as bosses.
 * Octostomp
 * Octonozzle
 * Octowhirl
 * Octomaw


 * Octo Valley the name of single-player mode.
 * Octo Valley The name of the setting of Splatoons single-player mode.

Or the gear:

Or the weapons:
 * Octoshot

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!