Themistocles Gluck (30 November 1853 in Iaşi, Moldavia – 25 April 1942 in Berlin) was a German physician and surgeon.

He first invented endoprostheses from ivory in 1890 at Berlin, when he performed the first documented total wrist Arthroplasty.

The French surgeons Louis Léopold Ollier and Jules Péan had already recognized Gluck's importance in the 1890s.

Nevertheless, it took a long time for him to receive the academic recognition he deserved as a non-university surgeon.

It was not until he was 70 years old (1922) that he was made an associate professor and even nominated for the Nobel Prize (unsuccessfully, because his work was considered too old at the time).