Trevenant locations — where to catch

In Lumiose City (Legends: Z-A)

• Wild Zone 13 — Walk, Static Encounter
• Wild Zone 15 — Walk

In Kitakami (Scarlet & Violet – The Teal Mask)

• Timeless Woods — Walk, Static Encounter

Other games (5)

• Sword / Shield — The Isle of Armor (Gen 8): Ballimere Lake, Frigid Sea, Giant's Foot, Max Lair, Old Cemetery, Slippery Slope, Snowslide Slope
• Sword / Shield (Gen 8): Dappled Grove, Giant's Mirror, Stony Wilderness, Watchtower Ruins
• Ultra Sun / Ultra Moon (Gen 7): Tapu Village
• Sun / Moon (Gen 7): Poke Pelago
• X / Y (Gen 6): Kalos Route 20

Trevenant — full Pokédex entry