Balthazar (novel), a 1958 novel by Lawrence Durrell

Balthazar (also spelled Balthasar or Balthassar), is the name commonly attributed to one of the Three Wise Men, at least in the west. Though no names are given in the Gospel of Matthew, this was one of the names the Western church settled on in the 8th century, though other names were used by Eastern churches (for more information see Bibical Magi). It is an alternate form of the Babylonian king Belshazzar, mentioned in the Book of Daniel. Balthazar may also be:

A wolf-like Faerie hunter on Neopets

Balthus, a twentieth century artist, whose birth name is Balthazar Klossowski de Rola

Baltasar Gracián y Morales, 17th century Spanish author

Balthasar Castiglione, Italian Renaissance author

Balthasar Gérard, assassin of William I of Orange

Hans Urs von Balthasar, a 20th century Roman Catholic theologian

Balthazar (film), a 1966 film by Robert Bresson

Balthasar Neumann 18th century German architect

Balthazar Johannes Vorster apartheid-era South African Prime Minister and President

Balthazar, Francisco, the "Prince of Filipino poets"

Baltasar Garzón, Spanish judge

Baltasar Corrada del Río, Puerto Rican politician

Belthazor, a demon, played by actor Michael Bailey Smith on the television show Charmed

Balthasar Hubmaier, German Anabaptist leader

Balthasar Oomkens von Esens, 16th century Frisian rebel (two of whose brothers were named Caspar and Melchior)

Balthasar Ferdinand Moll, Baroque sculptor

Balthasar Bekker, 17th century Dutch philosopher

Balthazar Getty, American actor and great grandson of J. Paul Getty

Professor Balthazar, a Croatian cartoon series for children about an old inventor

Baltazar (footballer), Brazilian footballer

Balthasar Behem Codex, a 1505 lawbook from Kraków

Balthasar Russow, Estonian chronicler

Baltasar Lopes da Silva, Cape Verdean writer

The Beastly Beatitudes of Balthazar B (novel), a 1968 novel by J.P. Donleavy

Joseph Balthasar, Comte Siméon, 19th century French politician

Balthasar de Monconys, 17th century French magistrate

A demon played by Gavin Rossdale in the film Constantine

A supporting character in the movie The Scorpion King played by actor Michael Clarke Duncan

Romeo's manservant in the William Shakespeare play Romeo and Juliet

Portia's manservant in the William Shakespeare play The Merchant of Venice

A follower of Don Pedro, a singer, from the William Shakespeare play Much Ado about Nothing

Balthazar Alvarez of France or Father Balthazar Alvarez, French 17th Century Jesuit who shaped “that special type of spirituality which characterized the Spanish Jesuits”