La Seine no Hoshi (ラ・セーヌの星, Ra Sēnu no Hoshi) is a Japanese anime series by Soeisha (later renamed as Sunrise), which premiered in Japan on Fuji TV from April 4, 1975 and finished its run on December 26, 1975, spanning a total of 39 episodes. The title translates to English as "The Star of the Seine" or "The Seine's Star". It is based on Alain Delon's 1964 movie The Black Tulip (which, in spite of the title, is based on Alexandre Dumas, père's novel The Black Tulip in name only).

It was created by Mitsuru Kaneko, and directed by Masaaki Ōsumi (episodes 1-26) and Yoshiyuki Tomino (episodes 27-39). It was written by Sōji Yoshikawa, while the character designer was Akio Sugino. The music for the series was composed by Shunsuke Kikuchi.