Lickitung locations — where to catch

In Hisui (Legends: Arceus)

• Avalanche Slopes — Walk
• Diamond Settlement — Walk
• Shrouded Ruins — Walk
• Snowfall Hot Spring — Walk
• Space-time distortions — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Lake Valor — Walk
• Route 215 — Walk

In Johto & Kanto (HeartGold & SoulSilver)

• Johto Safari Zone — Walk
• Route 44 — Walk

In Kanto (FireRed & LeafGreen)

• Route 18 — Trade

In Johto & Kanto (Gold, Silver & Crystal)

• Route 44 — Walk

In Kanto (Red, Blue & Yellow)

• Cerulean Cave — Walk
• Route 18 — NPC Trade

Other games (8)

• Brilliant Diamond / Shining Pearl (Gen 8): Lake Valor
• Sword / Shield — The Isle of Armor (Gen 8): Brawlers' Cave, Max Lair, Soothing Wetlands
• Let's Go, Pikachu! / Let's Go, Eevee! (Gen 7): Cerulean Cave
• Ultra Sun / Ultra Moon (Gen 7): Poni Gauntlet
• X / Y (Gen 6): Kalos Victory Road
• Black 2 / White 2 (Gen 5): Unova Route 2
• Black / White (Gen 5): Challengers Cave
• XD (Gen 3): Citadark Isle

Lickitung — full Pokédex entry