Where to catch Snubbull

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

• Chargestone Cavern — Walk
• Polar Biome — Walk

In Hoenn (Ruby, Sapphire & Emerald)

• Safari Zone — Walk

In Johto & Kanto (Gold, Silver & Crystal)

• Route 34 — Walk
• Route 35 — Walk
• Route 38 — Walk
• Route 5 — Walk
• Route 6 — Walk
• Route 7 — Walk
• Route 8 — Walk

Snubbull — full Pokédex entry