Halla Hrund Logadóttir (born 12 March 1981) is an Icelandic scientist and politician, who works as the current Director of Energy Affairs at Orkustofnun and an adjunct professor at Harvard University in the United States.

From 2011 to 2013, Halla Hrund was the director of international development and from 2013 until 2016, manager of the Iceland School of Energy at Reykjavík University.

Since 2015, Halla Hrund has been working as a part-time teacher at Reykjavík University, where she teaches a course on strategic planning in the field of energy with a focus on climate issues and has also been on the board of Orkusjóð since that time.

She is also the co-founder, former co-director, and current affiliate of the Arctic Initiative at the Belfer Center for Science and International Affairs at Harvard University in 2017 and has since worked there as an adjunct professor.

Halla Hrund and former Prime Minister of Iceland Katrín Jakobsdóttir ranked as top contenders for the presidency in the polls between late April and mid-May.