Takako Nishizaki (born 1944) is a Japanese violinist. She was the first student to complete the Suzuki Method course, at age nine.

Nishizaki came to the United States from Japan in 1962. She first studied with Broadus Erle at Yale and then with Joseph Fuchs at Juilliard. In 1964, she was a runner-up in the Leventritt Competition, in which Itzhak Perlman won first prize. In 1966, she was awarded Juilliard's Fritz Kreisler Scholarship. In 1969, she won first prize in the Juilliard Concerto Competition performing Mozart’s Sinfonia Concertante with violist Nobuko Imai.

Nishizaki has performed and recorded with pianists such as Andras Schiff, Jenö Jandó and Michael Ponti, and has performed in a number of chamber music ensembles.

Nishizaki is married to Naxos Records label owner Klaus Heymann, and teaches violin in Hong Kong.