Eileen Quiring O'Brien (born March 2, 1948) is an American politician who served as a member of the Clark County Council from 2017 to 2022. A member of the Republican Party, she represented the 4th district from 2017 to 2019 and later served as the chair of the council, representing the at-large district from 2019 to 2022 and the 5th district in 2022.[1][2][3]