In Pokémon Brilliant Diamond and Shining Pearl, an Eevee can be unlocked after completing the main game's events and becoming the League Champion. Eevee's have always been a popular Pokémon due to their many evolutions and, well, the fact they're cute.
So, in this guide, we explain how to get your hands on an Eevee.
How To Unlock Eevee
First things first, you will need to have beaten the Elite Four and Cynthia, thus crowning yourself the League Champion. Then, if you haven't already, you will need to complete your Sinnoh Pokédex by encountering every Pokémon in the region, including the illusive Drifloon.
After this, you can speak with both Professor Rowan and Professor Oak at the Pokémon Research building in Sandgem Town to have your Sinnoh Pokédex upgraded to the National Pokédex. Ditto will now only be available to catch!
Where To Find Eevee
Eevee can be easily acquired in Hearthome City, but to get your hands on more, you'll need to hope that they appear in the Trophy Garden or go about breeding them.
Hearthome City
After unlocking the National Pokédex, go to Bebe's house in Hearthome City, which is directly right of the Pokémon Center. Speak to Bebe, and she will offer you an Eevee to raise!
Trophy Garden
The only other known way of acquiring more than one Eevee without breeding is if they happen to be a daily Pokémon in the Trophy Garden. The Trophy Garden can be accessed by going through the northern door in the Pokémon Mansion, but to find out what the daily Pokémon is, you'll need to speak to Mr Backlot in the room located in the eastern corridor.
How To Evolve Eevee
Eevee can later be evolved into the following forms if you're able to catch multiple of them or breed them using a Ditto: Vaporeon, Jolteon, Flareon, Espeon, Umbreon, Leafeon, and Glaceon.
We talk more about exactly how to evolve Eevee into each form under the 'Eevee Evolutions' section of our evolution guide.
That's how to get yourself an Eevee or ten! For more post-game content and Pokémon, we recommend checking out Ramanas Park and all legendary Pokémon that Brilliant Diamond and Shining Pearl has to offer. Alternatively, why not enter your Eevee in a Super Contest Show, or take them for a stroll around Amity Square?