| Birth Date: | 21 September 1928 |
| Party: | Labour Party |
| Birth Place: | Bergen, Norway |
| Parliament: | Norwegian |
| Constituency Mp: | Sør-Trøndelag |
| Term: | 1969–1989 |
| Occupation: | Schoolteacher |
Liv Aasen (21 September 1928 – 21 August 2005) was a Norwegian politician for the Labour Party.
Aasen was born in Bergen. She was elected to the Parliament of Norway from Sør-Trøndelag in 1969, and was re-elected on four occasions, serving twenty years. On the local level she was a member of Kongsberg city council from 1955 to 1959 and of Trondheim city council from 1959 to 1963. Outside politics she worked as a school teacher in Fana, Kongsberg, Trondheim and Geneva.[1] Aasen was married to Per Aasen, Norway's former ambassador to Iceland.[2]