Thelonius is a male name with English origins. It is pronounced as thuh-LOH-nee-uhs (/ðəˈloʊniəs/). This name has variations, including Thelonious. In terms of popularity, Thelonius has been relatively rare in recent years in the United States. According to data from the Social Security Administration, it ranked 12131 in 2013 and 4987 in 1972. Despite its lower frequency, Thelonius carries a certain charm and uniqueness. It is associated with the legendary American jazz pianist and composer Thelonious Monk, who was one of the most influential figures in the history of jazz music. Choosing Thelonius for your baby boy may pay tribute to this musical icon while giving him a distinctive and memorable name.