Morphia of Melitene was the queen consort of the crusader Kingdom of Jerusalem from 1118 until her death. She was an Armenian by ethnicity and an adherent of the Greek Orthodox faith. Her father, Gabriel, was a warlord in northern Syria. He wished to marry her off to one of the crusade leaders who were carving out states in the Levant, and eventually chose Count Baldwin II of Edessa. They married around 1100 and had four daughters: Melisende, Alice, Hodierna, and Ioveta. In 1118, Baldwin was elected king of Jerusalem; the next year, Morphia became the first woman to be crowned queen of Jerusalem. She did not participate in the government but took initiative to liberate her husband after he was captured in 1123. She died a few years later. According to historian Bernard Hamilton, her religious practices left a lasting mark on the status of Orthodox Christians in the crusader kingdom.

The Kingdom of Jerusalem, also known as the Latin Kingdom, was a Crusader state that was established in the Levant immediately after the First Crusade. It lasted for almost two hundred years, from the accession of Godfrey of Bouillon in 1099 until the fall of Acre in 1291. Its history is divided into two periods with a brief interruption in its existence, beginning with its collapse after the siege of Jerusalem in 1187 and its restoration after the Third Crusade in 1192.