Happiny locations — where to catch

In Paldea (Scarlet & Violet)

• Area Zero — Walk
• East Province (Area One) — Walk
• Poco Path — Walk
• South Province (Area Five) — Walk
• South Province (Area Four) — Walk
• South Province (Area One) — Walk
• South Province (Area Three) — Walk
• South Province (Area Two) — Walk
• West Province (Area One) — Walk

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

• Coastal Biome — Walk
• Savanna Biome — Walk

In Hisui (Legends: Arceus)

• Avalanche Slopes — Walk
• Cottonsedge Prairie — Walk
• Hideaway Bay — Walk
• Horseshoe Plains — Walk
• Lonely Spring — Walk
• Obsidian Falls — Walk
• Oreburrow Tunnel — Walk
• Tombolo Walk — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Hearthome City — Gift
• Trophy Garden — Walk

Other games (7)

• Brilliant Diamond / Shining Pearl (Gen 8): Hearthome City, Trophy Garden
• Sword / Shield — The Isle of Armor (Gen 8): Challenge Beach, Challenge Road, Fields of Honor, Forest of Focus, Honeycalm Island, Insular Sea, Loop Lagoon, Soothing Wetlands, Stepping-Stone Sea, Training Lowlands, Workout Sea
• Ultra Sun / Ultra Moon (Gen 7): Alola Route 1, Alola Route 4, Route 5, Alola Route 6, Blush Mountain, Hauoli City, Lush Jungle, Mount Hokulani, Poni Grove, Seaward Cave, Wela Volcano Park
• Sun / Moon (Gen 7): Alola Route 1, Alola Route 4, Route 5, Alola Route 6, Hauoli City, Lush Jungle, Malie City
• Omega Ruby / Alpha Sapphire (Gen 6): Mirage Spot Forest, Mirage Spot Mountain
• Black 2 / White 2 (Gen 5): Nacrene City
• Black / White (Gen 5): White Forest

Happiny — full Pokédex entry