| 120031 | October 20 | Birth | 1946 – Elfriede Jelinek, Austrian author and playwright, Nobel Prize laureate |
| 120032 | October 20 | Birth | 1946 – Richard Loncraine, English director and screenwriter |
| 120033 | October 20 | Birth | 1946 – Lucien Van Impe, Belgian cyclist |
| 120034 | October 20 | Birth | 1946 – Chris Woodhead, English civil servant and academic (d. 2015) |
| 120035 | October 20 | Birth | 1948 – Sandra Dickinson, American-English actress and composer |
| 120036 | October 20 | Birth | 1948 – Piet Hein Donner, Dutch jurist and politician, Dutch Minister of Justice |
| 120037 | October 20 | Birth | 1948 – Melih Gökçek, Turkish journalist and politician, Mayor of Ankara |
| 120038 | October 20 | Birth | 1949 – Gina Pareño, Filipino actress |
| 120039 | October 20 | Birth | 1950 – Tom Petty, American singer-songwriter, guitarist, and producer (Tom Petty and the Heartbreakers, Mudcrutch, and Traveling Wilburys) |
| 120040 | October 20 | Birth | 1950 – William Russ, American actor and director |
| 120041 | October 20 | Birth | 1951 – Al Greenwood, American keyboard player (Foreigner) |
| 120042 | October 20 | Birth | 1951 – Patrick Hall, English lawyer and politician |
| 120043 | October 20 | Birth | 1951 – Ken Ham, Australian-American evangelist |
| 120044 | October 20 | Birth | 1951 – Leif Pagrotsky, Swedish businessman and politician |
| 120045 | October 20 | Birth | 1951 – Claudio Ranieri, Italian footballer and manager |
| 120046 | October 20 | Birth | 1952 – Melanie Mayron, American actress and director |
| 120047 | October 20 | Birth | 1952 – Derek Ridgers, English photographer and art director |
| 120048 | October 20 | Birth | 1953 – Keith Hernandez, American baseball player, sportscaster, and actor |
| 120049 | October 20 | Birth | 1953 – Richard McWilliam, American businessman and philanthropist, co-founded the Upper Deck Company (d. 2013) |
| 120050 | October 20 | Birth | 1953 – Bill Nunn, American actor |
| 120051 | October 20 | Birth | 1954 – Steve Orich, American composer and conductor |
| 120052 | October 20 | Birth | 1955 – Thomas Newman, American composer and conductor |
| 120053 | October 20 | Birth | 1955 – David Profumo, English author and academic |
| 120054 | October 20 | Birth | 1955 – Aaron Pryor, American boxer |
| 120055 | October 20 | Birth | 1955 – Robert ten Brink, Dutch television host and actor |
| 120056 | October 20 | Birth | 1956 – Danny Boyle, English director, producer, and screenwriter |
| 120057 | October 20 | Birth | 1956 – Martin Taylor, English guitarist |
| 120058 | October 20 | Birth | 1957 – Jane Bonham-Carter, Baroness Bonham-Carter of Yarnbury, English politician |
| 120059 | October 20 | Birth | 1957 – Chris Cowdrey, English cricketer and sportscaster |
| 120060 | October 20 | Birth | 1957 – Susanna Haavisto, Finnish actress and singer |