Over the past 110 years, 22 676 boys and 5 girls have been named Johnathon. The name Johnathon ranks 676th in the United States among the most common names for boys. For the first time more than ten times newborns were named Johnathon in 1956. The peak of popularity of the name Johnathon came in the 1980s and 1990s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.