| 100% | LISTON | 6 | Champ dethroned by Clay in 1964 |
| 46% | BAER | 4 | Heavyweight champ dethroned by Braddock |
| 45% | OLIVA | 5 | 1964, 1965, and 1971 AL batting champ Tony whose #6 was retired by the Twins in 1991 |
| 44% | JESS | 4 | ___ Willard, heavyweight champ dethroned by Jack Dempsey |
| 39% | ALI | 3 | Clay, beginning in 1964 |
| 35% | OHPRETTYWOMAN | 13 | 1964 Roy Orbison single covered by Van Halen in 1982: 3 wds. |
| 34% | GROMIT | 6 | Canine companion of Wallace in various clay animation films by Nick Park |
| 33% | LURCH | 5 | Character played by Ted Cassidy in the 1964 TV series "The Addams Family" |
| 32% | DEATH | 5 | "A Covenant with ___," 1964 legal thriller novel by Stephen Becker set in New Mexico |
| 32% | MORTICIA | 8 | ___ Addams, matriarch played by Carolyn Jones in the 1964 TV series "The Addams Family" |
| 32% | FESTER | 6 | Uncle ___, character played by Jackie Coogan in the 1964 TV series "The Addams Family" |
| 32% | GOMEZ | 5 | ___ Addams, patriarch played by John Astin in the 1964 TV series "The Addams Family" |
| 32% | WEDNESDAY | 9 | ___ Addams, daughter played by Lisa Loring in the 1964 TV series "The Addams Family" |
| 32% | ITT | 3 | Cousin ___, family member played by Felix Silla in the 1964 TV series "The Addams Family" |
| 32% | LEONES | 6 | Currency that replaced pounds in 1964 |
| 32% | ZANZIBAR | 8 | It joined with Tanganyika in 1964 |
| 32% | ALI | 3 | Noted convert to Islam in 1964 |
| 32% | DOLLYLEVI | 9 | Broadway heroine who debuted in 1964 |
| 32% | ZANZIBAR | 8 | It merged with Tanganyika in 1964 |
| 32% | THEWHO | 6 | British rock band established in 1964 |
| 32% | CASSIUS | 7 | Clay in a ring |
| 32% | AIKEN | 5 | Clay in a studio |
| 31% | JAMESSTEWART | 12 | 35-Across in 1964 |
| 31% | YOUCANCALLMEALI | 15 | What Cassius Clay said starting in 1964? |
| 30% | GABORONE | 8 | Botswana's capital, built in 1964 |
| 30% | SHEA | 4 | Park opened in 1964 |
| 30% | SEAWORLD | 8 | Park opened in 1964 |
| 30% | WHIG | 4 | Political party founded by Henry Clay in the 1830s |
| 29% | MEET | 4 | "___ the Beatles!" 1964 album by The Beatles which was inducted into the Grammy Hall of Fame in 2001 |