Patrick O'Connor may refer to:

• Patrick J. O'Connor (born 1955), Chicago city alderman
• Patrick M. O'Connor, professor of anatomy at Ohio University
• Patrick O'Connor (athlete) (born 1966), Jamaican sprinter
• Patrick O'Connor (hurler), Irish hurler
• Patrick O'Connor (Australian politician) (1862-1923)
• Patrick O'Connor (Manitoba politician)
• Paddy O'Connor (1879-1950), baseball player
• a pseudonym of the writer Leonard Wibberley

[ Source: Wikipedia ]