Bentli is a unique and modern given name of unknown origin, perhaps derived from an amalgamation of popular names like Bentley or Bentley's more casual form, Bentlee. It first gained notable usage in the United States during the late 20th century but has since become increasingly popular worldwide, particularly among English-speaking countries.
"The name Bentli experienced a notable peak in popularity between 2009 and 2012, with a significant drop afterwards."