Jamna

Jamna may refer to:


 * Jamna (bird), an extinct passeriform bird from early Oligocene deposits in Poland
 * Jamna, Slovenia, a settlement in northeastern Slovenia
 * Jamna, Lesser Poland Voivodeship, a village in Lesser Poland Voivodeship, Poland
 * Jamna Górna and Jamna Dolna, two non-existing villages in Subcarpathian Voivodeship, Poland
 * Yamuna River, also known as Jamna, a major river of northern India
 * Jamna, the stream in the city of Mikołów, Silesia, Poland
 * Popular Front of Islamic Revolution Forces (JAMNA), political organization in Iran