Isaac Penington (or Pennington) may refer to:
- Isaac Penington (Lord Mayor) (1584–1661), Lord Mayor of London
- Isaac Penington (Quaker) (1616–1679), early Quaker, son of Isaac Penington above
- Isaac Pennington (1745–1817), British physician
Famous quotes containing the word isaac:
“My mother made me a scientist without ever intending to. Every other Jewish mother in Brooklyn would ask her child after school: So? Did you learn anything today? But not my mother. “Izzy,” she would say, “did you ask a good question today?” That difference—asking good questions—made me become a scientist.”
—Isidor Isaac Rabi (20th century)