Mckennon is of Scottish origin, derived from the surname McKenna, which means 'son of Kenneth'. The name gained popularity during the Victorian era when there was a fascination with Scottish culture and history. It has since been used as both a first name and a last name. In recent years, it has been more commonly used as a unisex given name in English-speaking countries.
The name Mckennon experienced a peak in popularity between 2007 and 2010 with a consistent high number of births each year, ranging from 9 to 14. However, there was a notable decline starting from 2011 onwards, with the most recent data showing only 5 births in 2015. Overall, there were 93 babies named Mckennon born between 1995 and 2015.