Lil Green (December 22, 1919 (some sources give 1901 or 1910) – April 14, 1954) was an American blues singer and songwriter. She was among the leading female rhythm and blues singers of the 1940s, with a sensual soprano voice. Gospel singer R.H. Harris has lauded her voice, and her interpretation of religious songs.

Originally named Lillian Green or Lillie May Johnson, she was born in Mississippi. After the early deaths of her parents, she began performing in her teens and, having (like many African-American singers) honed her craft in the church performing gospel, she sang in Mississippi jukes, before heading to Chicago, Illinois, in 1929, where she would make all of her recordings.