Trausti is an Icelandic given name and also serves as a patronymic. It may refer to:
Given name
- Trausti Eyjólfsson (1927–2010), Icelandic sprinter
- Trausti Stefánsson (born 1985), Icelandic sprinter
Middle name
- Ásgeir Trausti (born 1992), Icelandic singer-songwriter and musician
- Ari Trausti Guðmundsson (born 1948), Icelandic geologist, author, documentarian, broadcaster, journalist, lecturer, mountaineer and explorer
- Jón Trausti Sigurðarson (born 1982), Icelandic marketing director and lawyer, and magazine publisher