Sir Havilland Walter de Sausmarez, 1st Baronet (1861–1941) was a judge of various British colonial or consular courts in Africa and Asia, the Ottoman Empire and China.
Sausmarez was born on 30 May 1861, the son of the Rev. Havilland de Sausmarez by his marriage to Anne Priaulx Walters. He was a scholar at Westminster, where he had a fine athletic record, including being Head of the Water. From there he went up to Trinity College, Cambridge, where he continued his career as an athlete and graduated BA in 1883. In 1881, while still at Cambridge, he was admitted to the Inner Temple and was called to the Bar in November 1884. He practised as a barrister in England on the Southern Eastern Circuit and then moved to Africa, where he began to practise in Lagos, Nigeria, in 1891. He was acting Queen's Advocate of the Colony of Lagos from June 1891 to January 1892.<
He joined the Foreign Office Judicial Service when he was appointed a Consul in Zanzibar in June 1892. He held the office of Assistant Judge of the Consular Court in Zanzibar from 1893–97 and then held the office of Assistant Judge of the Supreme Consular Court for the Ottoman Empire between December 1897 and 1903. He held the office of Judge of the Supreme Consular Court for the Ottoman Empire between 1903 and 1905. He was knighted in 1905.
He was appointed Judge of the British Supreme Court for China and Corea (based in Shanghai) from 1905 to 1921. By virtue of his position as Judge of the Supreme Court at Shanghai he served as President of the Full Court of the Supreme Court of Hong Kong from 1910 to 1920. The Ordinance creating the Full Court provided that the most senior judge on the bench would be President of the Full Court when it sat. He was knighted in 1905.