|Name in Japanese||ティアマトー|
|Debut (Anime)||Shakugan no Shana Episode 14|
|Debut (Light Novel)||Volume V|
|Debut (Manga)||Chapter 01 (Eternal Song)|
|Appears in||Anime, Manga (Eternal Song), Light Novels, Game|
|Voice Actor (Japanese)||Akeno Watanabe|
|Voice Actor (English)|| Lisa Ann Beley (Geneon)|
Clarine Harp (FUNimation)
|True Name||"Crown-and-Sash of Fantasies"
"Tiara of dreams" (english anime)
|Contracted to||Wilhelmina Carmel|
|Contractor's Title|| "Manipulator of Objects" (lit. "Manipulator of Ten Thousand Ribbons")
"Specialist of Everything" (English anime)
|Color of Flame||█ Cherry blossom-colored|
She is described by her own Flame Haze as a most unsociable entity; she is taciturn and to the point, saying nothing more than what is necessary, usually in monotone, betraying no emotion regardless of the situation, a trait unlike Wilhelmina herself, who is also a person of few words and often speaks in a monotonous manner while usually sporting a deadpan face. However, while in the final battle at Misaki City, she conversed with Wilhelmina in full sentences, using the same "de-arimasu" ending to her sentences that Wilhelmina uses. Along with Wilhelmina's "Dancing Princess of Peerless Combatant Skills", she also has a nickname, "Great River of Reticence" (寡言の大河 Kagen no Taiga ), which is sometimes shortened to just "Reticence".
- Her name refers to a primordial goddess from Babylonian mythology.
- The name of her Vessel can be taken to mean many things, but in Latin it refers to a theatrical mask.
- In the novels, her lines are almost always written in four kanji letters, with no hiragana or katakana.
- Along with Wilhelmina's "Dancing Princess of Peerless Combatant Skills", Tiamat has the nickname "Great River of Reticence."