Sir Henry William Butler Blackall QC (19 June 1889 – 1 November 1981) was an Irish lawyer and judge.
His father was a solicitor and member of the Council of the Incorporated Law Society of Ireland.
[3] In 1943 he was appointed Chief Justice of Trinidad and Tobago and President of the West Indian Court of Appeal.
At the end of World War II, in 1946, he was appointed Chief Justice of Hong Kong replacing Sir Atholl MacGregor.
[3] Blackall retired in 1951 and pursued his interest in genealogy, writing at least two books on the subject: The Butlers of County Clare[4] and The Galweys & Gallweys of Munster.