| 7921 | January 18 | Birth | 1941 – David Ruffin, American singer (The Temptations) (d. 1991) |
| 7922 | January 18 | Birth | 1943 – Paul Freeman, English actor |
| 7923 | January 18 | Birth | 1943 – Kay Granger, American educator and politician |
| 7924 | January 18 | Birth | 1943 – Dave Greenslade, English keyboard player (Greenslade, Colosseum, and IF) |
| 7925 | January 18 | Birth | 1943 – Charlie Wilson, American mortician and politician (d. 2013) |
| 7926 | January 18 | Birth | 1944 – Paul Keating, Australian economist and politician, 24th Prime Minister of Australia |
| 7927 | January 18 | Birth | 1944 – Carl Morton, American baseball player (d. 1983) |
| 7928 | January 18 | Birth | 1945 – Rocco Forte, English businessman |
| 7929 | January 18 | Birth | 1945 – José Luis Perales, Spanish singer-songwriter and guitarist |
| 7930 | January 18 | Birth | 1945 – Balagangadharanatha Swamiji, Indian religious leader (d. 2013) |
| 7931 | January 18 | Birth | 1946 – Perro Aguayo, Mexican wrestler |
| 7932 | January 18 | Birth | 1946 – Joseph Deiss, Swiss economist and politician, 156th President of the Swiss Confederation |
| 7933 | January 18 | Birth | 1946 – Henrique Rosa, Bissau-Guinean politician, President of Guinea-Bissau (d. 2013) |
| 7934 | January 18 | Birth | 1947 – Sachio Kinugasa, Japanese baseball player and journalist |
| 7935 | January 18 | Birth | 1947 – Takeshi Kitano, Japanese actor and director |
| 7936 | January 18 | Birth | 1949 – Bill Keller, American journalist |
| 7937 | January 18 | Birth | 1949 – Philippe Starck, French interior designer |
| 7938 | January 18 | Birth | 1950 – Gianfranco Brancatelli, Italian race car driver |
| 7939 | January 18 | Birth | 1950 – Gilles Villeneuve, Canadian race car driver (d. 1982) |
| 7940 | January 18 | Birth | 1951 – Bram Behr, Surinamese journalist and activist (d. 1982) |
| 7941 | January 18 | Birth | 1951 – Bob Latchford, English footballer |
| 7942 | January 18 | Birth | 1951 – Alan Moody, English footballer |
| 7943 | January 18 | Birth | 1952 – Michael Angelis, English actor |
| 7944 | January 18 | Birth | 1952 – Michael Behe, American biochemist, author, and academic |
| 7945 | January 18 | Birth | 1952 – R. Stevie Moore, American singer-songwriter |
| 7946 | January 18 | Birth | 1953 – Patrick G. Halpin, American politician |
| 7947 | January 18 | Birth | 1953 – Brett Hudson, American singer-songwriter and producer (Hudson Brothers) |
| 7948 | January 18 | Birth | 1954 – Tom Bailey, English singer-songwriter (Thompson Twins, International Observer, and Bailey-Salgado Project) |
| 7949 | January 18 | Birth | 1954 – Ted DiBiase, American wrestler and manager |
| 7950 | January 18 | Birth | 1954 – Jagdish Mali, Indian photographer (d. 2013) |