Pearl
Meagon is a rare spelling variant of Megan, which is a Welsh diminutive of Margaret. The name ultimately derives from the Greek word 'margarites', referring to a pearl. While the 'Megan' spelling became a mid-century staple, this specific 'Meagon' variation is extremely uncommon.
Less common today
Meagon isn't in the latest US Top 1000. It last peaked at #6,026 in 1990.
US births per 5-year period, 1990βpresent (SSA data).