Torstein Dahle (born 20 February 1947) is a Norwegian politician and economist.

He works at the Bergen University College and represents Red Party in the city council of Bergen.

At age 14, Dahle joined Lambertseter Youth Conservatives (Unge Høyre).

From 2003 to 2007, Dahle led the AKP(m-l)-initiated Red Electoral Alliance, which he had also helped establish.

In 2010, he was succeeded as Red Party leader by Turid Thomassen.