Iduna

Iduna may refer to:
 * One of several modern anglicizations of the name of the Norse goddess Iðunn
 * 176 Iduna, an asteroid named after the goddess
 * Iduna (bird), a genus of tree warblers
 * Iduna (literature society)
 * Iduna, Wisconsin, an unincorporated community, United States
 * Iduna language, spoken in Papua New Guinea
 * The journal of the Swedish Geatish Society
 * Iduna, a character from Disney's animated films of Frozen