Rinaldo is an opera by George Frideric Handel, composed in 1711, and was the first Italian language opera written specifically for the London stage. The libretto was prepared by Giacomo Rossi from a scenario provided by Aaron Hill, and the work was first performed at the Queen's Theatre in London's Haymarket on 24 February 1711. The story of love, war and redemption, set at the time of the First Crusade, is loosely based on Torquato Tasso's epic poem Gerusalemme liberata, and its staging involved many original and vivid effects. It was a great success with the public, despite negative reactions from literary critics hostile to the contemporary trend towards Italian entertainment in English theatres.

George Frideric Handel was a German-British Baroque composer well known for his operas, oratorios, anthems, concerti grossi, and organ concertos. Handel received his training in Halle and worked as a composer in Hamburg and Italy before settling in London in 1712, where he spent the bulk of his career and became a naturalised British subject in 1727. He was strongly influenced both by the middle-German polyphonic choral tradition and by composers of the Italian Baroque. In turn, Handel's music forms one of the peaks of the "high baroque" style, bringing Italian opera to its highest development, creating the genres of English oratorio and organ concerto, and introducing a new style into English church music. He is consistently recognized as one of the greatest composers of his age.