To provide a immersion nozzle for continuous casting in which no deposits are formed, and neither channeling nor clogging of molten steel flow occurs.

In the immersion nozzle for continuous casting, a triangular prism or substantially triangular prism, or a trapezoidal body or substantially trapezoidal body formed by truncating a triangular prism are arranged in a bottom hearth part so that two vertical surfaces of them face a discharge port.