Jan Egeberg Mellbye (13 July 1913 – 19 February 2009) was a Norwegian farmer and politician for the Centre Party.
He was born in Nes, Hedmark as a son of politician Johan E. Mellbye (1866–1954) and Emelie Pettersson (1879–1954).
From 1938 he managed the family farm, the former noble seat Grefsheim, and owned it from 1947.
He was a board member of the Norwegian Agrarian Association from 1958 to 1965,[1] and chaired the organization from 1969 to 1974.
[3] He also chaired Selskapet Ny Jord from 1961 to 1976, Landkredittforeningen from 1968 to 1981, Hedemarken Potetmelfabrikk from 1969 and Centralkassen for Bøndernes Driftskreditt from 1970.