Taisto Lundberg, known by his stage name Taisto Tammi, was a Finnish schlager singer. He was the first Finnish Romani singer to record and became especially known as an interpreter of tangos by Toivo Kärki.
His greatest popularity was in the early 1960s, when his most famous songs were Tango merellä, Tangotyttö and Rakkauden rikkaus. With the latter song, he participated in the Finnish national selection for the Eurovision Song Contest in 1964. Tango merellä recorded in the spring of 1963 was huge success and it became classic. In 1964, Tammi was chosen as Finland's best male singer.