Fredrik Meltzer was born in Bergen, Norway. Meltzer was from a merchant family with origins in Rödinghausen in the County of Ravensberg (in present-day Westphalia), Germany. Meltzer received a commercial education in London from 1796 to 1798. His education continued with trips during 1800 to 1801 in the Netherlands, France and Germany, after which he joined the family import and export company in Bergen.[3][4]
He represented the city of Bergen as a member of the Norwegian Constitutional Assembly where he served as a member on several committees. He generally favored the independence Party (Selvstendighetspartiet). Meltzer was one of the signatories of the Norwegian Constitution at Eidsvoll in 1814. Later he represented the city of Bergen in the Norwegian Parliament from 1821 to 1828. From 1813 to 1829, he was also a member of the city council in Bergen and from 1837 to 1849 a member of the Municipal Council.[1][5][6]