I don't know anywhere you can technically 'catch' and umbreon. You can catch an Eevee in the game though to evolve into an Umbreon from the Trophy Garden (for Pearl/Diamond/Platinum I believe you can either trade/migrate from Pokemon XD: Gale of Darkness, Pokemon Colluseum, FireRed, LeafGreen, Ruby, Sapphire, or Emerald or with someone else who has one in diamond, pearl, ect. as well)
You cannot catch an umbreon. The only way to get one is by training an Eevee at nighttime
you can't, you have to max out eevee's happiness at night to evolve it into Umbreon.
You can find umbreon in the temple where you catch requaza(sorry about the spelling)in the ruins whare the 3 Gengars are and in the room before the one you catch flareon in.
You can't catch umbreon to get one have an evee have max friendship and train it while its nighttime it will evolve to umbreon.
you cant catch it but you can level up evee with lots of trust at midnight
You can catch probopass in the chroma ruins in or by the room that has an umbreon
Umbreon is in the cave of the second city you go to once you start the game. But if you catch it, your game will freeze thats why you shouldnt capture him. Lots of people who play dont catch him
You have to visit Bebe in Hearthome City, in the Trophy Garden and she will give you an Eevee. From then on you have to train it at night time and it should evolve into an Umbreon. You cannot catch Umbreon in the wild. Or battle a trainer called collector dean who is found on route 212 with a espeon and umbreon
No but you start with two evee forms: Umbreon and Espeon.
You get an eevee from bill in goldenrod city and train it till it evolves.
It's Umbreon. You can't catch it in the wild but you can get it by levelling up with happiness at night. Trainers with an Umbreon are: Collector Dean (also has an Espeon) found on Route 212 South
there is no person unless you trade or catch an evee at the mansion by hearthome and evolve it at night.