| 1939-1941 | Mr. Louis Allaye CHAN |
| 1941 | Mr. Peter Hans Amandus ULRICH |
| 18th Dec 1941 – 1947 | (As Mr Ulrich died in office while defending Hong Kong against the Japanese attacks, the OBA office was left vacant from 18th December 1941 to 13th February 1947. The Association is believed to have been inactive during the period.) |
| 1947-1949 | Mr. Ferdinand Maria CASTRO |
| 1949-1952 | Mr. KAM Kwong Yee |
| 1952-1954 | Mr. VAN Kwok Shing |
| 1954-1957 | Mr. Hilton CHEONG-LEEN, CBE, JP |
| 1957-1960 | The Hon. Arnaldo de Oliveira SALES, GBM, CBE, JP |
| 1960-1962 | Dr. CHAN Pui Kai |
| 1962-1964 | Dr. PUN Chung Chik |
| 1964-1965 | Mr. Policarpo E. ANTONIO |
| 1965-1968 | Mr. Maximo Anthony CHENG |
| 1968-1971 | Mr. Michael CHAN Sui Hin, JP |
| 1971-1974 | Dr. Peter TANG Hin Yu |
| 1974-1976 | Mr. Peter TSANG Ting Po |
| 1976-1979 | Dr. Lawrence CHAN Siu Hung |
| 1979-1980 | Mr. Michael SZE Cho Cheung, GBS, CBE, ISO, JP |
| 1980-1981 | Mr. Paul KING Wen Pau |
| 1981-1982 | Mr. Frank CHEUNG Chi Yuen |
| 1982-1984 | Mr. Nicholas NG Wing Fui, GBS, CBE, JP |
| 1984-1986 | Mr. Dennis CHOW Koon Hung |
| 1986-1988 | Mr. Alex WONG Po Hang |
| 1988-1989 | Mr. Sam CHEN Tong Sang |
| 1989-1991 | Dr. Bell TSE Sing Sang |
| 1991-1993 | Mr. Lester Garson HUANG, SBS, JP |
| 1993-1994 | Mr. Colin NGAN Siu Lun |
| 1994-1997 | Dr. Joseph LEE Chung Tak, GBS, OStJ, JP |
| 1997-1999 | Dr. David MONG Tak Yeung, The Order of the Rising Sun, Gold Rays with Neck Ribbon |
| 1999-2001 | Mr. William TONG Wai Lun, BBS, MH, JP |
| 2001-2003 | Mr. William YAN |
| 2003-2004 | Dr. Robert YUEN Kar Ngai |
| 2004-2007 | Dr. Bernard KONG Ming Hei |
| 2007-2010 | Mr. Charles CHAN Kit Ying |
| 2010-2012 | Mr. Mark Robin Garvey HUANG |
| 2012-2014 | Mr. Willie WONG Chak Yin |
| 2014-2016 | Mr. Leonard CHU Wing Fei |
| 2016-2018 | Mr. Roger LEE Shiu Fung |
| 2018-2020 | Mr. Herman BO Ho Man |
| 2020-2022 | Mr. LAU Kam Tak Kent Samuel |
