Ra (disambiguation)

Ra is the Sun-god of Ancient Egypt.

Ra may also refer to:

Names and titles

• Rā, a Māori word for the Sun
• Ra I and Ra II, reed boats used by Thor Heyerdahl’s transatlantic expeditions named after Ra
  • Ra (film), a 1972 documentary film about these expeditions
• Alternate spelling of Roua, a Polynesian deity
• Tama-nui-te-rā, the coincidentally named Maori Sun-god
• Rå, a creature in Scandinavian mythology
• Ra, a group of entities channeled by Carla Rueckert
• Short for the IRA
• Sun Ra (1914-1993), an American jazz musician and philosopher

Medical

• Rheumatoid arthritis, a chronic, systemic inflammatory disorder that attacks synovial joints

Arts and entertainment

• Ra (American band), an American rock band
• Ra (Norwegian band), a Norwegian psytrance act
• Ra (Stargate), a character from the film Stargate, based on the Egyptian god
• Ra (artist), the pseudonym of Raoul Sinier, a french digital painter and electronic musician
• Ra (Utopia album)
• Ra (Eloy album), 1988
• Ra (board game), a board game for two to five players designed by Reiner Knizia and based on ancient Egyptian culture
• Ra (film), a 1972 documentary
• The Winged Dragon of Ra, from the Japanese Yu-Gi-Oh franchise
• Ra Cailum class battleship, a class of spaceships in the Gundam anime universe
• RA (Band), an acronym American punk/hardcore band Rise Against

Places

• Ra, Fiji, a province of Fiji
• Ra (Fijian Communal Constituency, Fiji)
• Ra (Open Constituency, Fiji)
• Ra (island) (or Rah), a small island of Vanuatu

Education

• Resource Academia, Lahore, Pakistan

Letters from several alphabets can be called ra or rHA

• ﺭ, rāʾ, 10th letter of Arabic alphabet, see Resh
• ረ, ራ — Amharic letters that can be read as variations of ra, also related to Semitic Resh
• Ռ, ṙa, the 28th letter in Armenian alphabet
• र, ड़', ढ़, र्ह, Devanagari letters which can be called ra, ṛa or rha
• Ra (kana), the Japanese kana ら and ラ
• ர, ற are articulated as ra, tra or dra depending on the consonant complex.
• Ԗ, the 23rd letter rha («ра») in the older (1924−1927) Moksha language cyrillic script

Designations

• Ra, Radium in the periodic table
• A half-step below Re on the solfège musical scale
• Rayleigh number, in physics
• SJ Ra, a Swedish locomotive
• $R_a$, the arithmetic average of absolute values of the deviation from the mean of a surface profile, a popular parameter of roughness
• .ra, the extension for RealAudio files

See also

• RA (disambiguation)
• RAH (disambiguation)
• RHA (disambiguation)
• RAS (disambiguation)
• Ras (disambiguation)