In Norse mythology, Im or Imr is a giant and the son of Vafthrudnir. According to stanza 5 of the poem Vafthrudnismal from the Poetic Edda:
"Then Odin went to try the wisdom
of the all-wise giant [Vafthrudnir];
to the hall he came which Im's father owned;
Odin went inside."
— Larrington trans.
Im is also mentioned in a list of giants in the Skaldskaparmal section of the Prose Edda by Snorri Sturluson.