Holmia

Holmia may refer to:
 * Holmia (Cilicia), a town of ancient Cilicia, now in Turkey
 * Holmia, the Latin name of Stockholm
 * Holmia, a residential area in the centre of Stockholm, on the island Kungsholmen
 * Holmia, the vernacular name of Holmium(III) oxide
 * 378 Holmia, an asteroid
 * Holmia (trilobite), a trilobite belonging to the Olenellina suborder
 * Holmia, a taxonomic synonym for a genus of sedges, Carex