Charles Bregler (May 1864–September 24, 1958) was an American portrait painter and sculptor, and a student (and disciple) of artist Thomas Eakins. Bregler wrote about Eakins's teaching methods, and amassed a large collection of his minor works, memorabilia and papers. Following Bregler's death, his widow safeguarded the Eakins collection for decades before selling it to the Pennsylvania Academy of the Fine Arts.