Allo Glessin
- Full Name: Allo Glessin
- Born: c.2350 (DS9 Novel: Rising Son)
- "Ten years of adult life" as of April 2376 per text
- Species: Cardassian
- Gender: Male
- By October 2371: Medic, Obsidian Order; Danasket (DS9 Novel: Rising Son)
- Abandoned in Gamma Quadrant following the failed Obsidian Order/Tal Shiar joint operation against the Founders (DS9 Novel: Rising Son)
- By November 2375: Medic, Even Odds (DS9 Novel: Rising Son)