Ain Janna (Arabic: عين جنّا) is a village located in the Ajloun Governorate in the north-western part of Jordan.

Average altitude of the village is about 1100 meters above sea level, causing most of the houses in the village to have a view reaching far beyond Jordan; one can easily see some mountains of Nablus in the West Bank (about 30 km /22 miles air distance).

They paid a fixed tax-rate of 25% on various agricultural products, including wheat, barley, summer crops, olive trees, goats and beehives, in addition to occasional revenues and for an olive oil press/press for grape syrup; a total of 10,000 akçe.

[4] The maqam and masjid of Sheikh Ali Mu'mani ibn al-Jenid is a religious shrine dating back from the early Ottoman period, comprising a saint's tomb and an underground mosque.

The site features a dome-covered tomb oriented towards the qibla and an djacent single-naved mosque, both integrated into a larger prayer hall complex.