The Islamic Society of Greater Lowell (ISGL) is a mosque in Chelmsford, Massachusetts, serving the Greater Lowell community.  In addition to being a house of worship for Muslims, ISGL also serves as a center for learning and social activities, including a weekly school for the youth.

ISGL was established in 1993 and has been in continuous operation since then.  From the time it was established, ISGL has provided Muslims with a space to offer their 5 daily prayers, Ramadan Taraweeh Prayers and Eid prayers.