| Dr T. Ifor Rees | |
| Honorific Suffix: | CMG |
| Birth Name: | Thomas Ifor Rees |
| Birth Date: | 16 February 1890 |
| Birth Place: | 'Bronceiro', Rhydypennau, Cardiganshire, Wales |
| Education: | Rhydypennau Board School; Ardwyn Grammar School |
| Occupation: | diplomat and author |
| Spouse: | Elizabeth Phillips (1890–1961) |
| Parents: | John Thomas Rees (1857–1949) and Elizabeth Davies (1857–1937) |
| Children: |
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Dr Thomas Ifor Rees CMG (16 February 1890 – 11 February 1977) was a British diplomat, author and translator. Born Thomas Ifor Rees at 'Bronceiro' near the hamlet of Rhydypennau in Cardiganshire, Wales,[1] he served as Britain's first Ambassador to Bolivia from 1947 until his retirement in 1949.
He was the author of a number of travel books in Welsh and English, such as In and around the valley of Mexico (1953), Sajama (1960) and Illimani (1964). His translations include a Welsh translation of the Rubaiyat of Omar Khayyam, published in Mexico City in 1939.