Headly \he(ad)-ly\ as a boy's name is a variant of Hedley (Old English), and the meaning of Headly is "heathered meadow".

The baby name Headly sounds like Hadly, Hedly and Headley. Other similar baby names are Hadley, Hagly, Haily, Hanly, Harly, Hawly, Radly, Redly and Wadly.