Anthony Thieme (20 February 1888 – 6 December 1954) was a landscape and marine painter and a major figure of the Rockport (MA) School of American regional art.
He was a contemporary of important Rockport artists Aldro Hibbard, Emil Gruppe, W. Lester Stevens, Antonio Cirino, and Marguerite Pierson.
Returning to the United States with a contract for additional stage work, Thieme found himself in Boston.
He continued to travel widely; Mexico, Guatemala, Florida, and France were major destinations, always painting en plein air.
There have been stories of deep depression or major illness, but no definitive rationale for his suicide has emerged.