Magnus Wogelius Feilberg (30 January 1817 – 5 June 1899) was a Norwegian bookseller and publisher.
Born in Copenhagen, he came to Norway in 1839. In 1843 he founded Feilberg & Landmark, a combined publishing house and bookstore, together with Jens Landmark. Feilberg was later among the founders of the Norwegian Booksellers Association in 1851, and chaired this organization from 1879 to 1886.