Kathleen O'Connor

Kathleen O'Connor may refer to:
 * Kathleen O'Connor (politician) (1934–2017), Irish Clann na Poblachta politician
 * Kathleen O'Connor (painter) (1876–1968), impressionist painter in Western Australia and France
 * Kathleen O'Connor (actress) (1894–1957), American actress
 * Kathleen M. O'Connor, American Old Testament scholar