Gallade locations — where to catch

In Lumiose City (Legends: Z-A)

• Wild Zone 20 — Walk
• Wild Zone 5 — Static Encounter

In Paldea (Scarlet & Violet)

• Dalizapa Passage — Walk
• Glaseado Mountain — Walk
• North Province (Area One) — Walk
• North Province (Area Two) — Walk
• South Province (Area Six) — Walk
• Tagtree Thicket — Walk

In Kitakami (Scarlet & Violet – The Teal Mask)

• Kitakami Wilds — Walk
• Timeless Woods — Walk

In Hisui (Legends: Arceus)

• Snowpoint Temple — Walk

Other games (2)

• Sword / Shield — The Isle of Armor (Gen 8): Challenge Road
• Sword / Shield (Gen 8): Bridge Field, Dusty Bowl, North Lake Miloch, Rolling Fields, Stony Wilderness

Gallade — full Pokédex entry