Fort Mosque, Ottoman mosque ruins at castle site in Lezhë, Albania.

The Castle Mosque (Albanian: Xhamia e Kalasë) stands in partial ruins in Lezhë, Albania. It is a former mosque, built in the Ottoman style, and is designated a Cultural Monument of Albania. Visitors see surviving stone walls and foundations rather than a complete building.

The Castle Mosque (Xhamia e Kalasë) stands in Lezhë, in the northwest of Albania, and is listed as a Cultural Monument of Albania. It is a former mosque, now partly in ruins, so its present state reflects abandonment rather than a documented construction date or restoration.

The Albanian name Xhamia e Kalasë means "Mosque of the Castle", tying the building to the fortress above Lezhë. It is now a former mosque in partial ruins and is listed as a Cultural Monument of Albania, so visitors see a protected historic site rather than an active place of worship.

The Castle Mosque stands inside the Lezhë fortress, above the town centre; the climb is on foot along marked paths that slope upward through the grounds. Wear comfortable walking shoes, as the terrain is uneven in places. The building itself is in partial ruins, so expect rubble and open masonry rather than a roofed interior.

The Castle Mosque in Lezhë is listed as a Cultural Monument of Albania, and it survives only in partial ruins rather than as a working mosque. Its Albanian name, Xhamia e Kalasë, simply means "Mosque of the Castle", tying the building to the fortress that shares its hill.