Viserion

Viserion may refer to:
 * Viserion (Game of Thrones), one of the three dragons hatched by Daenerys Targaryen in the Game of Thrones franchise
 * Viserion, one of the three dragons hatched by Daenerys Targaryen in the A Song of Ice and Fire books by George R. R. Martin
 * Pseudocalotes viserion, Viserion’s false garden lizard, a species of agamid lizard, found in Malaysia
 * Cryodrakon viserion, a name originally considered by Michael Habib for Cryodrakon boreas