Rudolph Altrocchi (October 31, 1882 – May 13, 1953) was a scholar of Italian language and literature and a university professor.
From 1928 to his retirement in 1947, he served as chairman of the Italian department at the University of California, Berkeley.
His wife, Julia Cooley Altrocchi, published a large number of children's books.
Altrocchi served in the American Expeditionary Force during World War I, managing propaganda and liaison functions in Rome and Lyon, France.
Altrocchi's 1944 book Sleuthing in the Stacks was a collection of irreverent essays in which Altrocchi deftly dissected such varied topics as forged marginal notes in an obscure Renaissance text, the literary and mythical predecessors of Tarzan, and the image of Dante in a minor painting in a church in Florence.