| Date of birth | 9 December 1875 | ||||||||||||||||
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| Place of birth | Belfast, Ireland | ||||||||||||||||
| Date of death | 19 December 1934 (aged 59) | ||||||||||||||||
| Place of death | Belfast, Northern Ireland | ||||||||||||||||
| School | Methodist College Belfast Tonbridge School | ||||||||||||||||
| Notable relative(s) | Venie Barr (wife) | ||||||||||||||||
| Occupation(s) | Stockbroker | ||||||||||||||||
| Rugby union career | |||||||||||||||||
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Ainsworth Barr (9 December 1875 — 19 December 1934) was an Irish international rugby union player.