They Were Eleven (11人いる!, Jūichinin Iru!?) is a manga by Moto Hagio which ran in Shōjo Comic for three issues from September through November 1975. It was awarded the Shogakukan Manga Award for shōnen in 1976.
The manga was adapted as a one-episode, 40-minute television drama broadcast on 1977-01-02 as part of the Shōnen Drama Series on NHK. Ten years later, it was adapted as a theatrical anime movie, released November 1986. In 2004, a theatrical stage adaptation was produced.