The following is the list of the Spirits from the Wii Fit series in Super Smash Bros. Ultimate.
| Name | Type | Class | Ability | Origin game |
|---|---|---|---|---|
| Tree | Wii Fit |
| Spirits | |
|---|---|
| by categories | Primary spirit (Enhanceable spirit) · Support spirit · Master spirit · Fighter spirit · (All spirits) · Summon · DLC Spirits (DLC changes) |
| by series | Super Mario · Donkey Kong · The Legend of Zelda · Metroid · Yoshi · Kirby · Star Fox · Pokémon · EarthBound · F-Zero · Ice Climber · Fire Emblem · Game & Watch · Kid Icarus · Wario · Metal Gear · Sonic the Hedgehog · Pikmin · R.O.B. · Animal Crossing · Mega Man · Wii Fit · Punch-Out!! · Pac-Man · Xenoblade Chronicles · Duck Hunt · Street Fighter · Final Fantasy · Bayonetta · Splatoon · Castlevania · Mii · Super Smash Bros. · Others · Persona · Dragon Quest · Banjo-Kazooie · Fatal Fury · ARMS · Minecraft · Tekken · Kingdom Hearts |
 Wii Fit universe
| |
|---|---|
| Fighter | Wii Fit Trainer (SSB4 · SSBU) |
| Stage | Wii Fit Studio |
| Others | Wii Balance Board |
| Trophies and Spirits | Trophies · Spirits |
| Music | SSB4 · Ultimate |
| Related universes | Wii Sports • Mii |