Rosa or De Rosa may refer to:
People
- Rosa (given name)
- Rosa (surname)
Places
- 223 Rosa, an asteroid
- Rosa, Alabama, 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
Film and television
- Rosa Filmes, a Portuguese motion picture production and distribution company
- 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
Music
- 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
Vehicles
- 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)
Science, mathematics, technologies
- Rosa (genus), the group of plant species called roses
- ROSA, a surgical robot
- ROSA (operating system), a Linux distribution
- RCA open-source application
- Romanian Space Agency
- Roll Out Solar Array
Other uses
- Record of School Achievement, an Australian education qualification
- Hurricane Rosa, several storms
- ROSA (ISA), the feminist campaign of the International Socialist Alternative
- Ultra Rosa, one of Monster Energy flavors