Cornelius "Con" Kelleher (born 1891) was an Irish Gaelic footballer who played as a forward for the Cork senior team.

Kelleher made his first appearance for the team during the 1910 championship and was a regular member of the starting fifteen for just two seasons. During that time he won a set of All-Ireland and Munster winners' medals.

At club level Kelleher was a multiple county championship medalist with Macroom.

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