Eleanor McFadden (nee O'Neill) is an Irish former tennis player.

O'Neill grew up in the village of Laytown in County Meath and is a niece of Mayo footballer Paddy Moclair.

From 1956 to 1958 she won three successive national under 18 singles championships and became an Irish number one in the 1960s.

[1] She took part in Ireland's first ever Federation Cup campaign in 1964, which ended in a loss to the United States in Philadelphia.

In 1969 she announced she was quitting amateur tennis to pursue professional coaching.