Reinhart is a masculine given name of Germanic origin, derived from elements meaning "power" and "strong". It is composed of the Old High German elements 'rein' meaning 'powerful', 'strong' and '-hard' which means 'brave'. The name was introduced into England during the Norman conquest in 1066. In medieval times, it was a popular name among the nobility. Today, Reinhart is still used as a given name, though it has fallen out of fashion to some extent. It is more commonly found in Central and Eastern Europe than in other regions. Some notable individuals with this name include the German-American author Thomas Bernhard (born Reinhart) and the American musician Reihard Mohr.
The name Reinhart experienced significant fluctuations in popularity throughout the century, with a notable peak during World War I and another spike in the late 1920s. However, it seems to have lost favor by the middle of the twentieth century, as evidenced by the lower birth counts in later years. Overall, there were 202 individuals named Reinhart born between 1907 and 2020.