Thierry is a French male given name, derived from the Germanic "Theodoric". It is the cognate of German "Dietrich" and "Dieter", Italian Teodorico, Derek and Derrick, and of various forms in other European languages. It is also a surname. People with the given name. Theodoric of Freiberg (c. 1250-c. 1310), also known as Thierry, early Dominican. Thierry of Chartres (died before 1155), French philosopher. Theodoric I, Duke of Upper Lorraine (ruled 978–1027) Theodoric II, Duke of Lorraine (ruled 1070–1115) Theuderic II (587–613), king of Burgundy and Austrasia. Thierry, Count of Flanders (c.
https://en.wikipedia.org/wiki/Thierry