The name Rosamund (also spelt Rosamond and Rosamunde) is a girls' name and can also be a family name (surname). Originally it combined the Germanic elements hros, meaning horse, and mund, meaning "protection". Later it was influenced by the Latin phrases rosa munda, meaning "pure rose", and rosa mundi, meaning "rose of the world". "Rosamunde" is the German and "Rosemonde" the French form of the name.

Use of the name might refer to:

  • Rosamund Clifford, medieval beauty and longtime mistress of Henry II
  • Rosamund (Gepid) or Rosamunde, second wife of Alboin, King of the Germanic Lombards, daughter of King Cunimund of the Gepids.
  • Rosamund Kwan, a Chinese actress
  • Rosamund Lake, another name for Edwards Air Force Base
  • Rosamund Elspeth Howe, Baroness Howe of Idlicote
  • Rosamund Pike, British actress
  • Matthew Rosamund, soldier and recipient of the Victoria Cross
  • Rosamunde Pilcher, British novelist
  • 540 Rosamunde, an asteroid
  • An opera by Thomas Augustine Arne
  • Rosmonda, a tragicomedy by Carlo Goldoni
  • "The Complaint of Rosamond" by Samuel Daniel
  • Rosamund (Tahlequah, Oklahoma), listed on the NRHP in Cherokee County, Oklahoma