| Office: | Minister of Administration and Consumer Affairs |
| Term Start: | 15 January 1976 |
| Term End: | 11 January 1978 |
| Primeminister: | Odvar Nordli |
| Predecessor: | Odd Sagør |
| Successor: | Kirsten Myklevoll |
| Office2: | Minister of Transport and Communications |
| Term Start2: | 16 October 1973 |
| Term End2: | 15 January 1976 |
| Primeminister2: | Trygve Bratteli |
| Predecessor2: | John Austrheim |
| Successor2: | Ragnar Christiansen |
| Office3: | Member of the Norwegian Parliament |
| Term Start3: | 1 October 1969 |
| Term End3: | 30 September 1977 |
| Constituency3: | Finnmark |
| Office4: | Deputy Member of the Norwegian Parliament |
| Term Start4: | 1 January 1954 |
| Term End4: | 30 September 1965 |
| Constituency4: | Finnmark |
| Birth Date: | 23 September 1921 |
| Birth Place: | Sør-Varanger, Finnmark, Norway |
| Death Place: | Hammerfest, Finnmark, Norway |
| Party: | Labour |
Annemarie Røstvik Lorentzen (23 September 1921 – 30 June 2008) was a Norwegian politician for the Labour Party. She was the first female Norwegian Minister of Transport and Communications, in addition to being Minister of Consumer Affairs and Administration and Norwegian ambassador to Iceland. Lorentzen played a major role in the post-World War II reconstruction of Hammerfest after it was razed by the fleeing Nazi occupiers.
She was elected to the Norwegian Parliament from Finnmark in 1969, and was re-elected on one occasion. She had previously served as a deputy representative during the terms 1954 - 1957 and 1961 - 1965.
From 1973 to 1977, Lorentzen was appointed to the second cabinet Bratteli. During this period her seat in parliament was taken by Per A. Utsi. She was Minister of Transport and Communications from 1973 to 1976 and Minister of Consumer Affairs and Administration from 1976 to 1978.
She was born in Sør-Varanger Municipality, but worked in Hammerfest as a teacher from 1947 to 1969. She was a member of the municipal council of Hammerfest Municipality from 1951 to 1963. From 1961 to 1965 she chaired the regional party chapter of Vest-Finnmark. From 1961 to 1969 she was a member of the national Labour Party board.
After her time as government minister, she was appointed Norwegian ambassador to Iceland. She served in this capacity from 1978 to 1985.