支聯會; Cantoneseⓘ Mandarinⓘ ) was a pro-democracy organisation that was established on 21 May 1989 in the then British colony of Hong Kong during the 1989 Tiananmen Square protests and massacre in Beijing.

The main activities the organisation held were the annual memorials and commemorations, of which the candlelight vigil in Victoria Park was the most attended, reported and discussed event each year.

[1] Five members of the Alliance including vice chairwoman Chow Hang-tung were arrested on 8 and 9 September 2021, after it had rejected a request by police to cooperate in an investigation into it allegedly acting as an "agent of foreign forces", a crime under the Hong Kong national security law.

On 20 May 1989 after Premier Li Peng imposed the martial law, the Joint Committee on the Promotion of Democratic Government (JCPDG), an umbrella organisation of the local pro-democracy activists decided to hold a demonstration at the Victoria Park and marched to the headquarters of New China News Agency (NCNA).

After the massacre, delegates from more than 200 civil groups elected a 20-member Standing Committee headed by Szeto Wah and Martin Lee to hold the subsequent commemorations and actions.

It also maintained close relationship with the Tiananmen Mothers initiated by Ding Zilin, a group of family members of those who were killed in the massacre, which vocally supported the democracy movements in China.

The annual candlelight vigil at the Victoria Park among other activities has been the most iconic event organised by the Alliance, as it is the most attended consecutive commemoration of the 1989 protests.

A year before the Alliance also organised events and protests in support of the Charter 08 movement launched by mainland democracy activists such as Liu Xiaobo.

Such a view was held by localist scholar Chin Wan, who believed that the Chinese nationalistic sentiment and patriotism the Alliance projected was an obstacle for Hong Kong people to construct a distinct identity.

[19] Increased pressure by Hong Kong authorities, believed by observers to have been prompted by the Chinese government, had caused several pro-democracy organizations and civic groups to disband by August 2021.

[31] In July 2021, the Alliance announced that it was dismissing all its permanent staff with effect from the end of the month to "ensure their safety"; seven members of its steering committee had resigned in view of "growing political and legal risks.

"[32] On 27 July, the Alliance pleaded guilty on charges of having run its museum without a proper licence and paid an amount of 8,000 Hong Kong dollars (US$1,025) as a fine.

Vice chairwoman Chow did not confirm that the outcome was a recommendation to dissolve the Alliance, pointing to the annual general meeting as the occasion where all decisions would be taken.

[21] On 25 August, police served a letter in which it accused the Alliance of collusion with foreign forces, a crime under the Hong Kong national security law.

[44] In December 2021 and May 2022, Leung and another Alliance member, Chan To-wai, respectively pleaded guilty to the data refusal and were each sentenced to three months in jail.

After the sentencing, the three were granted bail pending their appeal, on the condition of not accepting interviews or giving speeches endangering national security.

[48] In the appeal hearing in December 2023, the three defendants argued that the Alliance was not a foreign agent as alleged by police, and had thus not been required to provide the requested data.

[49] The arrests on 9 September 2021 met with strong criticism by United States Foreign Secretary Antony Blinken, who on Twitter said the action "constitute[d] a blatant abuse of the law".

[4] An editorial in the state-owned Global Times accused Blinken and his British counterpart Dominic Raab of "useless wailing for Hong Kong Alliance".