Manuel Quiroga Losada (15 April 1892 – 19 April 1961) was a Spanish violinist. He was described by music critics as "the finest successor of Pablo de Sarasate", and he is sometimes referred to as "Sarasate's spiritual heir". Enrique Granados, Eugène Ysaÿe (whose sixth Solo Sonata is dedicated to Quiroga) and other composers dedicated compositions to him. Violinists Ysaÿe, Fritz Kreisler, George Enescu, Mischa Elman and Jascha Heifetz, as well as composers such as Igor Stravinsky and Jean Sibelius, held Quiroga's artistry in great regard. Portuguese cellist Guilhermina Suggia described his playing of Tartini's Devil's Trill Sonata as "marvellous and flawless".

Quiroga was also a composer of two violin concertos, sets of variations, studies and smaller violin pieces, and cadenzas to major concertos from the core repertoire. He was the first to extensively use Galician nationalistic folklore as the basis of classical music compositions, and he was also a caricaturist and portraitist in oil and charcoal.

In 1937, Quiroga was involved in a traffic accident in New York City, which left him with a paralysed arm and ended his playing career.