Brothers Rugby Club is an Australian rugby union club that is based in Roseville, New South Wales, Sydney.

Brothers was formed by Old Boys of St Pius X College, Chatswood in 1947 and was at that time known as Christian Brothers Old Boys or CBOB’s.

Brothers are also affiliated to the Marist Rugby Federation in New Zealand, Tonga, Fiji and Samoa, numbering approximately 40 clubs in all.

[2] In the 2011 season, Brothers Rugby won both first and second grade grand finals and the Division 4 club championship, granting them promotion to Division 3 of Subbies.

All this while winning the Club Championship and promotion to Division 2 of Subbies.