Kaza, also spelled Kaze, Karze, Karzey, is a town and the subdivisional headquarters of the remote Spiti Valley in the western Himalayas in the Lahaul and Spiti district of the northern Indian state of Himachal Pradesh.

The largest township in Lahaul Valley and Spiti Valley of Himachal Pradesh, Kaza boasts of high mountains with snowy crowns, crystal clear rivers, streams and barren splendor interspersed with patches of green. Kaza is known for its colorful festivals and the Sakya Tangyud Monastery.