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title: "Heavyweight Boxing Rankings - May 1966"
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# Heavyweight Boxing Rankings - May 1966

Combined Heavyweight rankings from the WBA, WBC, IBF, WBO, and The RING. Month: May 1966. These are official monthly lists, not BoxRec fight records. See [Box-Rank vs BoxRec](https://box-rank.com/blog/box-rank-vs-boxrec-which-boxing-site-should-you-use).

| Rank | RING (May 1966) |
| --- | --- |
| Champion | [Muhammad Ali (United States)](https://box-rank.com/boxer/muhammad-ali) - Champion |
| 1 | [Ernie Terrell (United States)](https://box-rank.com/boxer/ernie-terrell) |
| 2 | [Doug Jones (United States)](https://box-rank.com/boxer/doug-jones) |
| 3 | [Thad Spencer (United States)](https://box-rank.com/boxer/thad-spencer) |
| 4 | [Henry Cooper (United Kingdom)](https://box-rank.com/boxer/henry-cooper) |
| 5 | [Zora Folley (United States)](https://box-rank.com/boxer/zora-folley) |
| 6 | [Karl Mildenberger (Germany)](https://box-rank.com/boxer/karl-mildenberger) |
| 7 | [Amos Lincoln (United States)](https://box-rank.com/boxer/amos-lincoln) |
| 8 | [George Chuvalo (Canada)](https://box-rank.com/boxer/george-chuvalo) |
| 9 | [Floyd Patterson (United States)](https://box-rank.com/boxer/floyd-patterson) |
| 10 | [Cleveland Williams (United States)](https://box-rank.com/boxer/cleveland-williams) |

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HTML: https://box-rank.com/rankings/heavyweight/may-1966
Markdown: https://box-rank.com/rankings/heavyweight/may-1966.md