Emilius may refer to:
People Saint Emilius (died 250), Christian martyr Emilius Ditlev Bærentzen (1799–1868), Danish painter Emilius Bangert (1883–1962), Danish composer, organist, and academic Emilius Bayley (1823–1917), English clergyman and cricketer Emilius R. Ciampa (1896–1996), American artist Émilius Goulet (born 1933), Canadian Roman Catholic archbishop Emilius Hopkinson (1869–1951), British aviculturist Emilius Seghers (1855–1927), bishop of Ghent Emilius Wagemans (1926–2011), Belgian singer
Other uses Emilius (horse), a racehorse Monte Emilius, a mountain in the Graian Alps Mr. Emilius, a character in the novels Phineas Redux and The Eustace Diamonds by Anthony Trollope Emilius Jones, a character in the novel Bonfires and Broomsticks by Mary Norton. Prof. Emilius Brown, a character in Bedknobs and Broomsticks, based on the character directly above. See also Emil (given name)