| Birth Date: | 30 June 1973 |
| Citizenship: | Icelandic |
| Office1: | Leader of the Responsible Future Party |
| Term Start1: | 27 July 2021 |
| Predecessor1: | Party established |
| Party: | Responsible Future |
Jóhannes Loftsson (born 30 June 1973) is an Icelandic engineer, activist and chairman of the Libertarian Society of Iceland and chairman of the political party Responsible Future.[1]
He became known in 2020 when he protested measures during the COVID-19 pandemic.[2] He founded the party Responsible Future in the summer of 2021.[3] His party ran in one constituency in the 2021 Icelandic parliamentary election with Loftsson as the leader.[4] Loftsson seeked first place on the list of the Centre Party in Reykjavík for the 2022 Icelandic municipal elections.[5] Loftsson led the Responsible Future list of candidates in the 2022 municipal elections and the 2024 Icelandic parliamentary election.[6]