Alexander James Adams (born November 8, 1962) is an American singer, musician and songwriter in the Celtic and World music genres. He blends mythical, fantasy, and traditional themes in performances, switching between instrumental fiddle and songs accompanied by guitar, bodhrán, and fiddle playing. He has also been a popular and influential artist in the field of filk music.

Adams performed as Heather Alexander for 25 years before beginning to tour as Alexander James Adams.