Rosa or De Rosa may refer to:

• Rosa (plant), the genus of roses
• Rosa (sea otter), a sea otter that has become popular on the internet
• Rosa (cow), a Spanish-born cow

• Rosa (given name)
• Rosa (surname)
• Santa Rosa (female given name from Latin-a latinized variant of Rose)

• 223 Rosa, an asteroid
• Rosa, Alabama, a town, United States
• Rosa, Germany, in Thuringia, Germany
• Rösa, a village and former municipality in Saxony-Anhalt, Germany
• Rosà a town in the province of Vicenza, Veneto, Italy
• Monte Rosa, the second highest mountain in the Alps and Western Europe
• Republic of South Africa, a southernmost country in Africa.

• Rosa (1986 film), a Hong Kong film released by Bo Ho Films
• Rosa – A Horse Drama, a 1993-94 opera by Louis Andriessen on a libretto by Peter Greenaway
• "Rosa" (Doctor Who), an episode of the eleventh series of Doctor Who

• De Rosa (band), a band from Scotland
• "Rosa", a song by Anitta and Prince Royce from the album Kisses, 2019
• "Rosa", a song by Jacques Brel
• "Rosa", a song by J Balvin from Colores, 2020
• "Rosa", a song by Magín Díaz, recorded by Los Soneros de Gamero and Irene Martínez in 1983 (original recording by Sexteto Habanero Godínez titled "Rosa, qué linda eres")

• USS Rosa (SP-757), a United States Navy patrol boat in commission from 1917 to 1918
• Rosa (barge), a hotel barge
• Mitsubishi ROSA, a bus built by Mitsubishi Fuso
• De Rosa (bicycle company)

• ROSA, a surgical robot
• ROSA (operating system), a Linux distribution
• RCA open-source application
• Romanian Space Agency
• Roll Out Solar Array

• Record of School Achievement, an Australian education qualification
• Romanian Space Agency
• Hurricane Rosa, several storms
• ROSA (ISA), the feminist campaign of the International Socialist Alternative

• All pages with titles containing Rosa
• Roza (disambiguation)
• Rosas (disambiguation)
• Rosawa, a village in Rajasthan, India founded by the Rosa clan of Jat people
• Sub rosa, Latin idiom for "in confidence"