Summoner is a quest character in Diablo II.

Summoner, a series of video games.

The Summoner, a character in The Summoner's Prologue and Tale, from The Canterbury Tales.

A summoner is a person who engages in summoning (see conjuration).

Summoner, the person in a traditional Wiccan Coven with the responsibility (among other duties) of calling Coven members to a meeting, or ritual.

Summoner, or Caller, a character class in the Final Fantasy series of video games.