Johnethan is of American origin, derived from the combination of the classic English names John and Ethan. It was popularized in the late 20th century but remains relatively uncommon today.
"The name Johnethan peaked briefly between 1998 and 2000 with five births each year, before seeing a slight increase to six births in 2000. Overall, there were sixteen babies named Johnethan born during this three-year period."