Modern invented name, possibly meaning third or valley settlement.
Treydon is a contemporary American invention. It likely combines the prefix 'Trey' (from the Middle English word for 'three') with the popular 'don' or 'den' suffix. Alternatively, it may be a creative variation of the English surname Drayton, which refers to a town near a portage or slope.
Less common today
Treydon isn't in the latest US Top 1000. It last peaked at #4,522 in 2008.
US births per 5-year period, 1990βpresent (SSA data).