"In light of the improvement in the security situation, it was decided that from Thursday... The curfew on all Tunisian territory will be lifted," the interior ministry said in a statement.
The curfew was imposed after protests that started in the central town of Kasserine, where an unemployed man was electrocuted during a January 16 demonstration over the lack of economic prospects in the region.
The unrest -- the worst since the uprising five years ago that ousted longtime dictator Zine El Abidine Ben Ali -- spread to several other towns and to Tunis where shops were burned and looted in one suburb in the night of January 21.
Tunisia in November imposed another nighttime curfew in the capital and suburbs after a deadly bus bombing claimed by the Islamic State (IS) jihadist group. It was lifted in December.
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Following the November 24 suicide attack that killed 12 presidential guards, the government also declared a nationwide state of emergency, which remains in place.
While Tunisia is considered a rare success story of the 2011 regional uprisings known as the Arab Spring, the authorities have failed to resolve the problems of social exclusion and regional inequalities.
Tunisia's economy grew last year by less than 0.3 percent, Economy Minister Slim Shaker said Tuesday.
The North African country lost more than a third of its tourism revenues in 2015 after attacks targeting the vital sector claimed by IS.
Two IS attacks last year killed 59 foreign tourists, badly shaking an industry that accounts for seven percent of the country's gross domestic product.