James Joseph O'Brien (born 5 August 1930 in Wood Green, Haringey, England, 11 April 2007) was a British clergyman and Roman Catholic auxiliary bishop in the Archbishopric of Westminster.
[1] On 12 June 1954 O'Brien received the priestly ordination in Westminster.
[2] The Archbishop of Westminster, Cardinal Basil Hume, gave him the bishop's ordination on 21 September of that year.
Co-consecrators were the auxiliary bishops in Westminster Basil Christopher Butler, Victor Guazzelli, Gerald Mahon, Philip James Benedict Harvey, and David Every Konstant.
On 30 June 2005 Pope Benedict XVI accepted Bishop O'Brien's age-related resignation.