Togepi locations — where to catch

In Hisui (Legends: Arceus)

• Bathers' Lagoon — Walk
• Cottonsedge Prairie — Walk
• Tranquility Cove — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Eterna City — Gift
• Sea Route 230 — Walk

In Johto & Kanto (HeartGold & SoulSilver)

• Violet City — Gift

In Sevii Islands (FireRed & LeafGreen)

• Water Labyrinth — Gift

In Johto & Kanto (Gold, Silver & Crystal)

• Violet City — Gift

Other games (10)

• Brilliant Diamond / Shining Pearl (Gen 8): Sea Route 230
• Sword / Shield (Gen 8): Bridge Field, Hammerlocke Hills, Hammerlocke, Lake of Outrage, Rolling Fields
• Omega Ruby / Alpha Sapphire (Gen 6): Lavaridge Town
• X / Y (Gen 6): Friend Safari
• Black 2 / White 2 (Gen 5): Nimbasa City
• Black / White (Gen 5): White Forest
• Platinum (Gen 4): Cynthia
• XD (Gen 3): Outskirt Stand
• Colosseum (Gen 3): Phenac City
• Gold / Silver / Crystal (Gen 2): Pokémon Center

Togepi — full Pokédex entry