Beatus, meaning blessed in Medieval Latin, may mean:
- a term in the Catholic Church for a person (Beata if female) who has been beatified, the stage before being declared a saint.
- A copy of the Commentary on the Apocalypse, (i.e. Book of Revelation), especially in illuminated manuscript form, written by Saint Beatus of Liébana (below), is often just referred to as a Beatus. Many famous versions exist, especially in the Mozarabic style, such as the Morgan Beatus.
- A "beatus initial" is the B of "Beatus vir..." ("Blessed is the man..."), the start of Psalm 1. This was usually given the most elaborate decoration in an illuminated psalter, often taking a whole page for the B or first two words.
- Beatus vir (from Psalm 112) is the title of many compositions including :
- Beatus vir (1641) by Monteverdi,
- Beatus vir, ZWV 75, 76, et 77, by Jan Dismas Zelenka,
- Beatus vir, RV597 et RV598, by Vivaldi,
- Beatus vir, MH 410, MH 398, by Michael Haydn,
- Beatus vir, opus 38 (1979), by Górecki,
Many other composers have written Beatus virs, including Mozart, Pergolesi, Johann David Heinichen.
- "Beatus", a song by Serj Tankian from Imperfect Harmonies
Individual persons
- Beatus of Lungern or Saint Beatus of Beatenberg or Thun, a semi-legendary figure who is considered the saint of Switzerland
- Saint Beatus, Bishop of Amiens, France in the 5th century
- Saint Beatus of Liébana, a Spanish monk who lived in the 8th century, in San Martin de Turieno in Liebana. Best known for his Commentary on the Book of Revelation - see above
- Beatus of Vendôme
- Beatus Rhenanus (also known as Beatus Bild), who lived 1485 -1547, a German humanist, religious reformer, and classical scholar