Tacna (; Aymara and Quechua: Taqna) is a district of Tacna, a province of the department of Tacna, Peru. Its capital is San Pedro de Tacna.
The term Tacna is derived from two Quechua words: Taka, meaning 'to hit', and na, which means 'place'. Thus, the full name means "I hit this place" or "I rule this place".
Since 2023, the incumbent mayor is Pascual Milton Güisa Bravo.