Portrait of a Young Man as Saint Sebastian is an oil painting on panel of c. 1533 by Bronzino in the Museo Thyssen-Bornemisza in Madrid. It entered that museum's collection in 1984 from a private collection in Rieti.^[1] The work has been related to the very similar figure of Saint Matthew from the four tondi in the Capponi Chapel, on which Bronzino collaborated with Pontormo, and to a study for it which is now in the Uffizi.^{[citation needed]}