Umbreon locations — where to catch

In Paldea (Scarlet & Violet)

• Dalizapa Passage — Walk
• Glaseado Mountain — Walk
• North Province (Area One) — Walk
• North Province (Area Three) — Walk
• North Province (Area Two) — Walk
• South Province (Area Six) — Walk, Static Encounter

In Hisui (Legends: Arceus)

• Space-time distortions — Walk

Other games (5)

• Sword / Shield — The Isle of Armor (Gen 8): Ballimere Lake, Giant's Bed
• Sword / Shield (Gen 8): Giant's Mirror, Lake of Outrage
• Ultra Sun / Ultra Moon (Gen 7): Alola Route 4, Alola Route 6
• Sun / Moon (Gen 7): Alola Route 4, Alola Route 6
• Colosseum (Gen 3): Outskirt Stand

Umbreon — full Pokédex entry