Hawk-like or from the shady hill
Shaydon is a modern American invention, likely created by blending the Irish name Shea, meaning hawk, with the popular 'don' suffix found in names like Brandon. It may also be interpreted as a variant of Shaden, an English surname referring to a shady valley or hill.
Less common today
Shaydon isn't in the latest US Top 1000. It last peaked at #6,327 in 2006.
US births per 5-year period, 1990βpresent (SSA data).