"Kuroi Namida" (黒い涙?,lit. "Black Tears") is the fourth single by Japanese singer Anna Tsuchiya, released on 10 January 2007 under the pseudonym "Anna Tsuchiya inspi' Nana (Black Stones)" on the Mad Pray Records Label, a sub-label to Avex. It spent six weeks in the Oricon singles chart, reaching #7 on 22 January 2007. The song was used as an ending theme to the anime-adaption of the Japanese manga Nana. It was Tsuchiya's second single used in the series, the first being "Rose".