Meaning & Origin
A diminutive of the female given name Margaret, also used as a formal given name.
Peggy is a girl's and boy's baby name of Greek origin, a traditional English diminutive of Margaret — from the Greek margaritēs meaning "pearl." The journey from Margaret to Peggy (via Meg, then Peg) is one of English naming's more charming phonetic transformations.
Peggy ranked in the U.S. top 10 girls' names during the late 1930s. Peggy Lee, the jazz singer, and the career-driven Peggy Olson of Mad Men both give the name a complex, capable image — far from the sweetness its diminutive form might suggest. It's due for a revival alongside Betty and Mildred.