Elsie Leung Oi-sie, GBM, JP (Chinese: 梁愛詩; born 24 April 1939) is a Hong Kong politician and solicitor.

In the period leading up to the handover, Leung advised the Chief Executive Designate of the Hong Kong Special Administrative Region on legal matters relating to the establishment of the HKSAR.

On 1 July 1997, Leung became the first Secretary for Justice of the Hong Kong Special Administrative Region, replacing Attorney General Jeremy Mathews.

Leung was awarded the Grand Bauhinia Medal in July 2002 for her "distinguished public service", and for her "significant contributions in ensuring the successful implementation of the new constitutional order under the One country, two systems concept".

[7] In March 2021, after Beijing announced changes to restrict the influence of district councillors as well as filtering potential Legislative Council members through the election committee, Leung claimed that Hong Kong could still move towards democracy after things "return to the right track.

[9] In November 2022, Leung privately shared that she backed the Court of Final Appeal's decision which allowed Jimmy Lai to hire Tim Owen, and that the NPCSC interpretation to ban foreign lawyers was not necessary, citing Xi Jinping's message that Hong Kong maintain the use of the common law system.