Megan is the Welsh diminutive of Margaret — from the Greek margarites (pearl). A top-20 US baby name from 1985 to 2001, peaking at #10 in 1990. Megan Rapinoe (born 1985) — American soccer star; co-captain of the US team that won the 2019 FIFA Women's World Cup; led the equal-pay lawsuit that resulted in US Soccer paying women equally to men. Meghan Markle (Duchess of Sussex, born 1981) — American actress; married Prince Harry in 2018. Megan Smith (born 1964) — Third Chief Technology Officer of the United States under Obama.
Subject of countless soccer documentaries and the 2019 USWNT Equal Pay lawsuit chronicled in LFG (2021).
In Pythagorean numerology the letters of Megan reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.