Eeveelution/Manga

Electric Tale of Pikachu
In the chapter To Evolve or Not to Evolve, That is the Question!, and Mikey fight together against the Eevee brothers so that Mikey and his Eevee may be accepted into the secret fellowship, The Knights of the E Stone. Each of Mikey's brothers owns one of Eevee's evolutions which was known at the time (,, and ), and Mikey's Eevee must fight each of its evolutions to prove its worth despite being an unevolved Pokémon.

Pokémon Adventures
Vee was featured as a Pokémon Team Rocket experimented on with the use of the "Eevee Bio-Engineering Scheme". This allowed Eevee to freely evolve into any of the Generation I Eeveelutions and then revert back into its original form. After some time under 's ownership however, Vee evolved into an, and the ability was eliminated.

Karen's Umbreon, first seen in the, used to be an Eevee.

The five Kimono Girls debuted in the. Each own a different Eeveelution like their game counterparts, and by the end of the chapter, recruited a Leafeon and a Glaceon.

in the caught an Eevee which she nicknamed Veevee and eventually evolved into Sylveon. This makes Y the second Pokédex holder to own an Eeveelution.

Pokémon Gold & Silver: The Golden Boys
Bill in The Golden Boys has an Umbreon and Espeon.

Pokémon Diamond and Pearl Adventure!
Mitsumi in the manga owns a Glaceon, Leafeon, Espeon, and an Eevee who was held hostage by Cyrus for a brief time.

Phantom Thief Pokémon 7
in Pokémon 7 owns a Leafeon that was given to her by Nazuna.

Pocket Monsters manga
Vaporeon, Jolteon, and Flareon were seen in the Pocket Monsters manga.