Slakoth locations — where to catch

In Paldea (Scarlet & Violet)

• East Province (Area One) — Walk
• South Province (Area Five) — Walk
• South Province (Area Three) — Walk

In Blueberry Academy (Scarlet & Violet – The Indigo Disk)

• Coastal Biome — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Eterna Forest — Walk

In Johto & Kanto (HeartGold & SoulSilver)

• Route 25 — Headbutt

In Hoenn (Ruby, Sapphire & Emerald)

• Petalburg Woods — Walk

Other games (3)

• Brilliant Diamond / Shining Pearl (Gen 8): Eterna Forest
• Omega Ruby / Alpha Sapphire (Gen 6): Petalburg Woods
• Black / White (Gen 5): White Forest

Slakoth — full Pokédex entry