DJ Rotom in Pokémon Pokopia is a Rotom that possesses a stereo system.
Rotom is an Electric- and Ghost-type Pokémon known throughout the franchise for inhabiting electrical appliances. Pokopia uses that established concept to create a character whose identity is connected to music and audio equipment.
The name DJ Rotom describes both the character’s role and its appliance-based situation. It is not a separate species or an evolution of Rotom. The character remains Rotom, while “DJ Rotom” is the story name used for this particular individual.
DJ Rotom belongs to the group of memorable Pokémon encountered while the world is being restored. Similar special names include Mosslax for an overgrown Snorlax and Tinkmaster for a tool-using Tinkaton.