Gray hill or gravelly hill
Gradon is likely a variant of the English surname Graydon. It is derived from Old English elements meaning a gray-colored hill or a hill covered in gravel. Like many surname-turned-first-names, it evokes a sense of place and heritage.
Less common today
Gradon isn't in the latest US Top 1000. It last peaked at #7,473 in 2008.
US births per 5-year period, 1990–present (SSA data).
