Where to find Ditto in Red, Blue & Yellow

Walk: Route 23 (35%, Red & Blue only), Route 15 (20%, Red & Blue only), Cerulean Cave (16%) + 3 more

• Cerulean Cave (1F, 2F, B1F) — Walk
• Pokémon Mansion (B1F) — Walk
• Route 13 — Walk
• Route 14 — Walk
• Route 15 — Walk
• Route 23 — Walk

Ditto in every game · Pokémon Red, Blue & Yellow interactive map (Kanto)