Giovanni Domenico Santorini (June 6, 1681 – May 7, 1737) was an Italian anatomist. He was a native of Venice, earning his medical doctorate at Pisa in 1701. He is remembered for conducting anatomical dissections of the human body.
From 1705 until 1728, Santorini performed anatomical demonstrations in Venice. His best written work was the 1724 publication of Observationes anatomicae, a detailed work involving anatomical aspects of the human body. He is credited for providing descriptions of several anatomical structures, including the following: