Dedenne locations — where to catch

In Lumiose City (Legends: Z-A)

• Aymlis Park — Walk
• Bleu Sector 4 — Walk
• Bleu Sector 6 — Walk
• Jaune Sector 11 — Walk, Static Encounter
• Jaune Sector 4 — Walk
• Magenta Sector 2 — Walk
• Magenta Sector 4 — Walk
• Magenta Sector 6 — Walk
• Magenta Sector 7 — Walk
• North Boulevard — Walk
• Rouge Sector 6 — Walk, Static Encounter
• Rouge Sector 8 — Walk
• Vert Sector 3 — Walk
• Vert Sector 8 — Walk
• Wild Zone 20 — Walk

In Paldea (Scarlet & Violet)

• Dalizapa Passage — Walk
• Glaseado Mountain — Walk
• North Province (Area Three) — Walk
• West Province (Area Three) — Walk

Other games (3)

• Sword / Shield — The Isle of Armor (Gen 8): Ballimere Lake, Challenge Beach, Frigid Sea, Frostpoint Field, Giant's Bed, Max Lair, Three-Point Pass
• Ultra Sun / Ultra Moon (Gen 7): Blush Mountain
• X / Y (Gen 6): Friend Safari, Kalos Route 11

Dedenne — full Pokédex entry