| Leo d'Almada e Castro | |
| Native Name Lang: | zh-hk |
| Birth Date: | 28 May 1904 |
| Birth Place: | Hong Kong |
| Office: | Member of the Executive Council |
| Appointed: | Alexander Grantham |
| Term Start: | 1949 |
| Term End: | 28 May 1959 |
| Successor: | Alberto Maria Rodrigues |
| Office1: | Member of the Legislative Council |
| Appointed1: | Andrew Caldecott |
| Term Start1: | 3 February 1937 |
| Term End1: | 13 November 1941 |
| Appointed2: | Mark Aitchison Young |
| Term Start2: | 1 May 1946 |
| Term End2: | 29 April 1953 |
| Office3: | Chairman of the Hong Kong Bar Association |
| Term Start3: | January 1961 |
| Term End3: | January 1963 |
| Predecessor3: | Lo Hin Shing |
| Successor3: | Brook Bernacchi |
| Term Start4: | January 1959 |
| Term End4: | January 1960 |
| Predecessor4: | John McNeill |
| Successor4: | Lo Hin Shing |
| Term Start5: | January 1957 |
| Term End5: | January 1958 |
| Predecessor5: | John McNeill |
| Successor5: | John McNeill |
| Term Start6: | January 1954 |
| Term End6: | January 1955 |
| Predecessor6: | Charles Loseby |
| Successor6: | John McNeill |
| Term Start7: | January 1951 |
| Term End7: | January 1952 |
| Predecessor7: | Charles Loseby |
| Successor7: | John McNeill |
| Alma Mater: | St. Joseph's College Exeter College, Oxford |
| Occupation: | Barrister-at-law |
| Death Date: | 1996 (aged 91-92)[1] |
| Death Place: | Portugal |
| Nationality: | Portugal United Kingdom |
| Spouse: | Clothilde Belmira Barretto |
Leonardo Horácio d'Almada e Castro Jr. (; 28 May 1904 – 1996) was a barrister and prominent leader of the Portuguese community in Hong Kong.
He was born in Hong Kong in the d'Alamda family which had existed since the British rule of Hong Kong in 1842. He was educated as St. Joseph's College and the University of Hong Kong. He later claimed he failed in completing his studies because of his laziness. He left for England and graduated in jurisprudence from the Exeter College, Oxford in 1926 and was called to the Bar as a member of the Middle Temple in 1927.[2] He briefly lectured commercial law at the University of Hong Kong before he started practising law in Hong Kong. Until 1960, he was one of the only four Queen's Counsel practising in Hong Kong, the others were namely, John McNeil, Charles Loseby and Brook Bernacchi.[3] He was appointed as an unofficial member in the Legislative Council of Hong Kong from 1937 to 1941 in the succession of José Pedro Braga and 1946 to 1953 after the war.[4]
During the Second World War he lived in Macao and served as a liaison officer between the Portuguese and British governments in connection of refugees.[2] He was appointed to the Hong Kong Planning Unit in London during the last years of the war after his difficult journey through Japanese-occupied China to India, and then to England. He served as President of the General Military Court during the short-term British military rule after the surrender of Japan in 1945. He became the first Hong Kong Portuguese King's Counsel in 1947 and his wife was appointed one of Hong Kong's first female Justices of the Peace at this time. In 1949, he was appointed to the Executive Council of Hong Kong.
He was also the member of the court of the University of Hong Kong from 1937 and President of the Hong Kong Bar Association five times from 1951 to 1962.[4] In the business sector, he was the director of the China Light & Power Co., China Underwriters and Far East Investment, Vice-President of the Boy Scouts Association of Hong Kong, Member of the Lusitano Club and Club Recreio.[5]
According to the Asia Who's Who in 1958, he lived in 12 Kadoorie Avenue, Kowloon.[5]