| Theodore William Chaundy | |
| Birth Date: | 19 January 1889 |
| Birth Place: | Oxford, England |
| Fields: | Differential calculus |
| Workplaces: | Oxford University |
| Alma Mater: | Balliol College, Oxford |
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| Thesis1 Year: | and |
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| Doctoral Students: | Kathleen Ollerenshaw |
| Known For: | Burchnall–Chaundy theory |
| Spouse: | Hilda Weston Dott |
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Theodore William Chaundy (19 January 1889 – 14 April 1966) was an English mathematician who introduced Burchnall–Chaundy theory.
Chaundy was born to widowed businessman John Chaundy and his second wife Sarah Pates in their shop-cum-home at 49 Broad Street in Oxford. John had eight children, one of whom died as a toddler, with his late first wife and died barely a year after Chaundy was born. The Chaundy home along Broad Street has since been demolished.[1]
Chaundy attended Oxford High School for Boys and read mathematics at Balliol College, Oxford on a scholarship. In 1912 he became a lecturer at Oxford and later named a Fellow of Christ Church, Oxford. He married Hilda Weston Dott (1890–1986) in 1920. They had five children and thirteen grandchildren.[1]