Eivinn Berg (31 July 1931 – 23 September 2013) was a Norwegian diplomat and politician for the Conservative Party. He was born in Sandefjord, and took the siv.øk. degree at the Norwegian School of Economics and Business Administration. He enrolled there in 1953, and was hired in the Norwegian Ministry of Foreign Affairs in 1956. From 1963 he served in the Norwegian delegation to GATT and EFTA in Geneva, then as a head of department in the EFTA Secretariat. From 1970 he was an embassy counsellor in Brussels, and negotiated the Norwegian membership in the European Economic Community. However, the membership was stopped in a 1972 referendum in Norway, and Berg left the foreign service. He was the director of the Norwegian Shipowners' Association from 1973 to 1978.