Where to catch Luvdisc

In Paldea (Scarlet & Violet)

• East Paldean Sea — Walk
• South Paldean Sea — Walk
• West Paldean Sea — Walk

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

• Coastal Biome — Walk

In Hoenn (Ruby, Sapphire & Emerald)

• Ever Grande City — Good Rod, Super Rod, Walk
• Route 128 — Good Rod, Super Rod

Luvdisc — full Pokédex entry