Oscar Borg was a Norwegian composer and conductor. He is best known for his compositions of marches for wind bands.
Alfred Oscar Johannessen Borg was born in Halden, Norway. His father, Ole Peter Johannesen (1816–1890), was from the Borg farm in Solør, from which the family name originated. His father was music sergeant in the 1st Brigades Band of Fredriksten Fortress in Halden.