Haydon is of English origin and means "from Hayden's hill". It is derived from an Old English surname that was given to someone who lived on a hill called Hayden. The name gained popularity in the 19th century, particularly among families with Quaker roots, and has since been used as both a first name and a surname. Haydon is also associated with the artist Benjamin Haydon (1786-1846), known for his historical paintings.
"The name Haydon experienced a peak in popularity between 2007 and 2010, with eight births each year during that period. However, it has since declined, with no more than seven births recorded annually since 2014."