Doduo locations — where to catch

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

• Savanna Biome — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Route 201 — Walk

In Johto & Kanto (HeartGold & SoulSilver)

• Johto Safari Zone — Walk
• Mt. Silver — Walk
• Route 22 — Walk
• Route 26 — Walk
• Route 27 — Walk
• Route 28 — Walk

In Hoenn (Ruby, Sapphire & Emerald)

• Safari Zone — Walk

In Kanto (FireRed & LeafGreen)

• Route 16 — Walk
• Route 17 — Walk
• Route 18 — Walk
• Safari Zone — Walk

In Johto & Kanto (Gold, Silver & Crystal)

• Mt. Silver — Walk
• Route 22 — Walk
• Route 26 — Walk
• Route 27 — Walk
• Route 28 — Walk

In Kanto (Red, Blue & Yellow)

• Route 16 — Walk
• Route 17 — Walk
• Route 18 — Walk
• Safari Zone — Walk

Other games (6)

• Brilliant Diamond / Shining Pearl (Gen 8): Route 201
• Let's Go, Pikachu! / Let's Go, Eevee! (Gen 7): Kanto Route 16, Kanto Route 17, Kanto Route 18
• Omega Ruby / Alpha Sapphire (Gen 6): Hoenn Safari Zone
• X / Y (Gen 6): Friend Safari, Kalos Route 5
• Black 2 / White 2 (Gen 5): Route 12
• Black / White (Gen 5): Route 12

Doduo — full Pokédex entry