Heðin Mortensen (born April 7, 1946) is a Faroese politician and member of the Social Democratic Party.

He was the mayor of the Municipality of Tórshavn, serving from January 1, 2021,[1] and succeded by Elsa Berg in 2024.

He has been a supervisory board member of the power company SEV since 1973 and was its director from 1993 to 1997.

As a member of the Union Party, Mortensen was also active in politics at the national level.

In 2015 he was elected to the Faroese Parliament as a member of the Social Democratic Party.