The Queen of Sheba (Hebrew: מלכת שבא‎, Malkaṯ Šəḇâ in Biblical Hebrew; Malkat Sh'va in Modern Hebrew; Ge'ez: ንግሥተ ሳባ, Nigiste Saba (Nəgəstä Saba); Arabic: ملكة سبأ‎, Malikat Sabaʾ) was a monarch of the ancient kingdom of Sheba and is referred to in Ethiopian history, the Bible, the Qur'an, Yoruba customary tradition, and Josephus. She is widely assumed to have been a queen regnant, although there is no historical proof of this; in fact, she may have been a queen consort. The location of her kingdom is believed to have been in Ethiopia and Yemen.

The queen of Sheba has been called a variety of names by different peoples in different times. To King Solomon of Israel she was the Queen of Sheba. In Islamic tradition she was called Bilqis or Balqis by the Arabs, who say she came from the city of Sheba, also called Mareb, in Yemen or Arabia Felix. The Roman historian Josephus calls her Nicaule. The Ethiopian people claim her as Makeda or Maqueda. She is thought to have been born sometime in the 10th century BC. Her lineage was part of the Ethiopian dynasty established in 1370 BCE by Za Besi Angabo, which lasted 350 years; Makeda's grandfather and father were the last two rulers of this dynasty. Makeda's mother was known as Queen Ismenie. In 1005 BCE, Makeda's father appointed her as his successor from his deathbed.

Sheba Ge'ez: ሳባ, Saba,(Arabic: سبأ, Sabāʾ, South Arabian , Hebrew: שבא, Sh'va, also referred to as the people of Tubba) was a kingdom mentioned in the Jewish scriptures (Old Testament) and the Qur'an. Sheba features in Ethiopian, Jewish and Qur'anic traditions. Among other things it was the home of the Biblical "Queen of Sheba" (named Makeda in Ethiopian tradition and Bilqis in Islamic tradition).

The actual location of the historical kingdom is disputed. Owing to the connection with the Queen of Sheba, the location has become closely linked with national prestige, as various royal houses have claimed descent from the Queen of Sheba and Solomon. In the medieval Ethiopian cultural work called the Kebra Nagast, Sheba was located in Ethiopia. Ruins in many other countries, including Yemen, Somalia, Sudan, Egypt, Ethiopia and Iran have been credited as being Sheba, but with only minimal evidence.

Modern archaeological evidence increasingly supports Sheba being located in modern Yemen at or near the site of the famous Marib Dam, which was first built more than 2500 years ago. They may have expanded at some point from Arabia into Africa to found trading posts in the lands currently called Eritrea and Somalia. Some scholars suggest a link to the Sabaeans of southern Arabia.

The Queen may refer to:

Any queen, for instance: