| Full name: | Timothy Carew O'Brien |
| Born: | 5th November 1861, Dublin, Ireland |
| Died: | 9th December 1948, Ramsey, Isle of Man, England |
| Batting: | Right-hand batsman |
| Bowling: | Left-arm (unknown style) |
| Occasional wicket-keeper | |
| Relations: | Brother-in-law: CE de Trafford; Brother: JG O'Brien |
| Teams: | England (Test: 1884-1895/96); Middlesex (Main FC: 1881-1898); Marylebone Cricket Club (Main FC: 1883-1905); Oxford University (Main FC: 1884-1885); Ireland (Main FC: 1902-1907); All teams |
| Lists of matches and more detailed statistics |
| Articles: | Brief profile of T.C.O'Brien |