Amadeus may refer to:

• Amadeus (name), a given name and list of people and fictional characters with the name
• Amadeus (presenter), Italian television and radio presenter Amedeo Umberto Rita Sebastiani (born 1962)
• Amadeus, stage name of Juha Grigori Amadeus Lundberg (born 1989), Finnish singer
• Rambo Amadeus, pseudonym for the Montenegrin singer-songwriter Antonije Pušić

• Amadeus (play), a 1979 stage play by Peter Shaffer
• Amadeus (film), a 1984 film based on the play
• Amadeus (TV series), an upcoming television miniseries based on the play
• Amadeus Quartet, a former English string ensemble

• Amadeus, a database developed by Bureau van Dijk of financial and business information on European firms
• Amadeus CRS, a computer reservation system used by airlines and travel agencies
  • Amadeus IT Group, a travel and tourism industry transaction processor and owner of Amadeus CRS
• Amadeus Press, a publishing house, imprint of Rowman & Littlefield
• Amadeus River Cruises, an alternate name of Lüftner Cruises, an Austrian cruise operator
• Amadeus (airline), a former German airline

• Amadeus Basin, a sedimentary basin in Australia
• Lake Amadeus, Northern Territory, Australia

• Eleutherodactylus amadeus, a species of frog
• Amade (name)
• Amadea (disambiguation)
• Amadee (disambiguation)
• Amadeo (disambiguation)
• Amadeu (given name)
• Amédée (disambiguation)
• Amedeo (disambiguation)
• All pages with titles beginning with Amadeus
• All pages with titles containing Amadeus