Ymir may refer to:
- In Norse mythology, Ymir is the father of a race of giants. Ymir is also the grandfather of Odin, the King of Gods.
- A character from Super Robot Wars.
- A character from Fire Emblem: Shadow Dragon.
- A character from Attack on Titan. The information below refers to this character.
|Age||17 years old (She joined the 104th Trainees Squad at age 14)|
|Voiced by||Saki Fujita|