Fredrik Meltzer Wallem (19 April 1837 – 2 April 1922) was a Norwegian journalist and writer, known for his work for fisheries of Norway. He was born in Bergen as the son of businessperson Johan Nordahl Wallem and his wife Emma Meltzer. He spent time at sea between 1853 and 1860, but then enrolled as a law student in 1861 and graduated with the cand.jur. degree in 1866. He started a career as a journalist in Morgenbladet from 1864 to 1867, and was the editor-in-chief of Bergensposten from 1868 to 1871 and 1872 to 1875. From 1886 to 1887 he edited Christiania Intelligenssedler, and from 1886 to 1890 Ny illustreret Tidende.