Irwinia

Irwinia is the scientific name of two genera of organisms and may refer to:


 * Irwinia (fly), a genus of flies in the family Tachinidae, now treated as a taxonomic synonym of Phytomyptera
 * Irwinia, a former genus of plants in the family Asteraceae, whose only species Irwinia coronata is now treated as Blanchetia coronata