Hitmontop locations — where to catch

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

• Canyon Biome — Walk, Static Encounter

Other games (3)

• Sword / Shield — The Isle of Armor (Gen 8): Ballimere Lake, Frigid Sea, Frostpoint Field, Giant's Bed, Max Lair, Snowslide Slope
• Sword / Shield (Gen 8): Lake of Outrage, Rolling Fields, South Lake Miloch, Stony Wilderness
• Colosseum (Gen 3): Agate Village, Shadow Pokemon Lab, Snagem Hideout

Hitmontop — full Pokédex entry