A necromancer is a studier of necromancy; talking to, and sometimes raising, the dead.
- Necromancer level 26 - "A crazy evil necromancer."
- Irwin Feaselbaum - "A young assistant necromancer."
- Ivrigar the Necromancer level 20 - "An evil user of Magic powers."
- Malignius Mortifer - Constantly refining his necromancy skills by practicing.
- Tarn Razorlor - Gone mad by living in the Abandoned Mine, raised his old friends from the dead.
- Kardia - A witch who resurrected Iban with rituals, one being Incantia, which summons the essence of life.
- Melzar the Mad - After Elvarg destroyed his home he went mad and dedicated himself to reanimating his fellow countrymen.
- Vanstrom Klause - A human-born Vampyre, he was able to summon a Skeletal Hellhound, indicating that he practise necromancy.
- Wizard Grayzag - A necromancer according to Malignius, but he now summons demons instead of undead.
- Sithik Ints - Responsible for the Zogres, in possession of the Necromancy book.
- Zemouregal - A powerful Mahjarrat necromancer who attacked Varrock with armies of undead.
- Lucien - Another powerful Mahjarrat necromancer who also attacked Varrock with an army of undead.
- Wizard Frumscone - A wizard who lives in the basement of the Wizards' Guild with his collection of summoned zombies.
In RuneScape Classic, players had the ability to chose their class. One of the choices was to become a Necromancer, which gave players a higher starting level in Necromancy (the original Magic). Later when the class system was removed, all necromancers became Mages.