Meagan is a feminine given name of Irish origin, derived from the Gaelic name "Magain," which means "pearl." The name was popularized by its use in Scottish literature during the 18th century, notably appearing in Sir Walter Scott's poem "The Lady of the Lake." Meagan is often spelled variations such as Megan or Meggan. It gained significant popularity in English-speaking countries during the latter half of the 20th century.
The name Meagan experienced popularity from the mid-1980s to early-1990s with a peak of 12 births per year in 1984 and 1985, gradually decreasing until it reached its lowest point at 5 births in 1992.