| 55681 | May.15 | Birth | 1942 – Lois Johnson, American singer-songwriter (d. 2014) |
| 55682 | May.15 | Birth | 1942 – Jusuf Kalla, Indonesian businessman and politician, 10th Vice President of Indonesia |
| 55683 | May.15 | Birth | 1942 – Doug Lowe, Australian politician, 35th Premier of Tasmania |
| 55684 | May.15 | Birth | 1942 – K. T. Oslin, American singer-songwriter and actress |
| 55685 | May.15 | Birth | 1943 – Paul Bégin, Canadian lawyer and politician |
| 55686 | May.15 | Birth | 1943 – Freddie Perren, American songwriter, producer, and conductor (d. 2004) |
| 55687 | May.15 | Birth | 1944 – Bill Alter, American police officer and politician |
| 55688 | May.15 | Birth | 1944 – Ulrich Beck, German sociologist and academic (d. 2015) |
| 55689 | May.15 | Birth | 1945 – Duarte Pio, Duke of Braganza |
| 55690 | May.15 | Birth | 1945 – Michael Dexter, English hematologist and academic |
| 55691 | May.15 | Birth | 1946 – Aly Bain, Scottish fiddler (The Boys of the Lough) |
| 55692 | May.15 | Birth | 1946 – Kenichi Mikawa, Japanese singer and television personality |
| 55693 | May.15 | Birth | 1946 – Thadeus Nguyễn Văn Lý, Vietnamese priest and activist |
| 55694 | May.15 | Birth | 1947 – Graeham Goble, Australian singer-songwriter, guitarist, and producer (Little River Band, Mississippi, Travis Wellington Hedge, and Birtles & Goble) |
| 55695 | May.15 | Birth | 1948 – Yutaka Enatsu, Japanese baseball player |
| 55696 | May.15 | Birth | 1948 – Brian Eno, English singer-songwriter, keyboard player, and producer (Roxy Music and 801) |
| 55697 | May.15 | Birth | 1948 – Valentina Gerasimova, Kazakhstani runner |
| 55698 | May.15 | Birth | 1948 – Kathleen Sebelius, American politician, 44th Governor of Kansas |
| 55699 | May.15 | Birth | 1949 – George Adams, American basketball player |
| 55700 | May.15 | Birth | 1949 – Frank L. Culbertson, Jr., American captain, pilot, and astronaut |
| 55701 | May.15 | Birth | 1949 – Robert Stephen John Sparks, English geologist and academic |
| 55702 | May.15 | Birth | 1950 – Nicholas Hammond, American-Australian actor and singer |
| 55703 | May.15 | Birth | 1950 – Keith Mills, English businessman |
| 55704 | May.15 | Birth | 1951 – Dennis Frederiksen, American singer-songwriter (Toto, Angel, and Le Roux) (d. 2014) |
| 55705 | May.15 | Birth | 1951 – Chris Ham, English political scientist and academic |
| 55706 | May.15 | Birth | 1951 – Frank Wilczek, American mathematician and physicist, Nobel Prize laureate |
| 55707 | May.15 | Birth | 1952 – Chazz Palminteri, American actor, director, producer, and screenwriter |
| 55708 | May.15 | Birth | 1952 – Phil Seymour, American singer-songwriter and producer (d. 1993) |
| 55709 | May.15 | Birth | 1953 – George Brett, American baseball player and coach |
| 55710 | May.15 | Birth | 1953 – Athene Donald, English physicist and academic |