| Ainsworth Barr | |
| Birth Date: | 9 December 1875 |
| Birth Place: | Belfast, Ireland |
| Death Place: | Belfast, Northern Ireland |
| Occupation: | Stockbroker |
| School: | Methodist College Belfast Tonbridge School |
| Relatives: | Venie Barr (wife) |
| Position: | Halfback |
| Repyears1: | 1898–01 |
| Repcaps1: | 4 |
| Reppoints1: | 0 |
Ainsworth Barr (9 December 1875 — 19 December 1934) was an Irish international rugby union player.
Born in Belfast, Barr was the son of James Barr, a director of the whiskey distillery Dunvilles. He attended the local Methodist College, as well as Tonbridge School in Kent, England.[1]
Barr was capped four times as a halfback for Ireland in intermittent appearances between 1898 and 1901, which included their 1899 win over Scotland, en route to the triple crown.[2]
After five years as a practising solicitor, Barr became a stockbroker in 1903 and was senior director at W. F. Coates & Company, the firm of Sir William Coates. He served a term as IRFU president in 1908–09.[3]
Barr married political activist Venie Barr (née Moyles).[4]