Wendy is a given name generally given to girls in English-speaking countries.

In Britain during the English Civil War in the mid-1600s, a male Captain Wendy Oxford was identified by the Leveller John Lilburne as a spy reporting on his activities.

[3] Its popularity in Britain as a feminine name is owed to the character Wendy Darling from the 1904 play Peter Pan and its 1911 novelisation Peter and Wendy, both by J. M.

[4][5][6] Its popularity reached a peak in the 1960s, and subsequently declined.

Margaret reportedly used to call Barrie "my friendy", with the common childhood difficulty pronouncing Rs this came out as "my fwendy" and "my fwendy-wendy".