The Sabaeans or Sabeans (Sabaean: , ; as-Sabaʾiyyūn; Səḇāʾīm) were an ancient group of South Arabians. They spoke Sabaic, one of the Old South Arabian languages. They founded the kingdom of Sabaʾ (سَبَأ) in modern-day Yemen, which was believed to be the biblical land of Sheba and "the oldest and most important of the South Arabian kingdoms".
The exact date of the foundation of Sabaʾ is a point of disagreement among scholars. Kenneth Kitchen dates the kingdom to between 1200 BCE and 275 CE, with its capital at Maʾrib, in what is now Yemen. On the other hand, Israel Finkelstein and Neil Asher Silberman believe that "the Sabaean kingdom began to flourish only from the eighth century BC onward" and that the story of Solomon and the Queen of Sheba is "an anachronistic seventh-century set piece." The Kingdom fell after a long but sporadic civil war between several Yemenite dynasties claiming kingship; from this, the late Himyarite Kingdom arose as victors.
Sabaeans are mentioned several times in the Hebrew Bible. In the Quran, they are described as either Sabaʾ (سَبَأ, not to be confused with Ṣābiʾ, صَابِئ), or as Qawm Tubbaʿ (قَوْم تُبَّع).
The origin of the Sabaean Kingdom is uncertain. Kenneth Kitchen dates the kingdom to around 1200 BCE, while Israel Finkelstein and Neil Asher Silberman write that "the Sabaean kingdom began to flourish only from the eighth century BCE onward". Originally, the Sabaeans were one of the shaʿbs (𐩦𐩲𐩨), "communities", on the edge of the Sayhad desert. Very early, at the beginning of the 1st millennium BC, the political leaders (ʾmlk) of this tribal community managed to create a huge commonwealth of shaʿbs occupying most of South Arabian territory and took the title mkrb sbʾ, "Mukarrib of the Sabaeans".
Several factors caused a significant decline of the Sabaean state and civilization by the end of the 1st millennium BC. Saba' was conquered by the Himyarites in the first century BCE; but after the disintegration of the first Himyarite Kingdom of the Kings of Saba' and Dhū Raydān, the Middle Sabaean Kingdom reappeared in the early second century.