Venomoth locations — where to catch

In Paldea (Scarlet & Violet)

• East Province (Area Three) — Walk
• North Province (Area One) — Walk
• North Province (Area Two) — Walk
• Tagtree Thicket — Walk

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

• Savanna Biome — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Route 229 — Walk

In Johto & Kanto (HeartGold & SoulSilver)

• Route 24 — Walk
• Route 25 — Walk

In Kanto (FireRed & LeafGreen)

• Safari Zone — Walk

In Sevii Islands (FireRed & LeafGreen)

• Berry Forest — Walk

In Johto & Kanto (Gold, Silver & Crystal)

• Route 10 — Walk
• Route 13 — Walk
• Route 14 — Walk
• Route 15 — Walk
• Route 24 — Walk
• Route 25 — Walk
• Route 43 — Walk
• Route 9 — Walk

In Kanto (Red, Blue & Yellow)

• Cerulean Cave — Walk
• Route 14 — Walk
• Route 15 — Walk
• Safari Zone — Walk
• Victory Road — Walk

Other games (6)

• Brilliant Diamond / Shining Pearl (Gen 8): Route 229
• Let's Go, Pikachu! / Let's Go, Eevee! (Gen 7): Kanto Route 14, Kanto Route 15
• Omega Ruby / Alpha Sapphire (Gen 6): Dewford Town, Route 104, Route 124, Route 134, Mirage Spot Island
• X / Y (Gen 6): Friend Safari
• Black / White (Gen 5): Dreamyard
• XD (Gen 3): Cipher Key Lair

Venomoth — full Pokédex entry