Tô Lâm in the context of Politics of Vietnam

The general secretary of the Communist Party of Vietnam Central Committee (Vietnamese: Tổng Bí thư Ban Chấp hành Trung ương Đảng Cộng sản Việt Nam), simply and informally the party general secretary or just general secretary (Tổng bí thư, TBT), is the contemporary title for the holder of the highest office within the Communist Party of Vietnam (CPV), being in practice the highest position in the politics of Vietnam and is considered one of the four pillars of the country's leadership. The general secretaryship used to be the second-highest office within the party when Hồ Chí Minh was the chairman, a post which existed from 1951 to 1969, and since 1969, the general secretary has generally been regarded as the highest leader of Vietnam. The general secretary also holds the title of secretary of the Central Military Commission, the leading party organ on military affairs, being the highest political and ideological leader of the People's Army of Vietnam; however, unlike other Communist Parties' leaders, the Vietnamese position rarely assumes a co-official government office or title such as State President at the same time, alongside the consensus-based four pillars slightly lowering the position's supremacy in the Vietnamese political system to its one-party counterparts. The current general secretary is Tô Lâm, ranking first in the Politburo. The position was once designated the first secretary (Vietnamese: Bí thư Thứ nhất) from 1951 to 1976.

Trần Phú, one of the founding members of the Indochinese Communist Party, was the party's first general secretary. A year after being elected, he was sentenced to prison by the French authorities because of anti-French activities. He died in prison the same year. Trần's de facto successor was Lê Hồng Phong who led the party through the office of General Secretary of the Overseas Executive Committee (OEC). The OEC general secretary led the party because the Central Committee had been all but annihilated. Hà Huy Tập, the third general secretary, was removed from his post in March 1938, and was arrested by the authorities in May. Nguyễn Văn Cừ, the fourth general secretary, was arrested by the authorities in January 1940, and executed by shooting on 28 August 1941. He was succeeded by Trường Chinh. An article in Nhân Dân on 25 March 1951 described Trường Chinh's role as the "builder and commander" of the revolution, while Hồ Chí Minh was referred to as "the soul of the Vietnamese revolution and the Vietnamese resistance". Trường Chinh was demoted as first secretary in 1956 because of his role in the Land Reform campaign". Hồ Chí Minh took over the office of first secretary, but quickly appointed Lê Duẩn acting first secretary. Lê Duẩn was elected first secretary in 1960 and was second only to Hồ Chí Minh until the latter's death on 2 September 1969.

The Central Secretariat of the Communist Party of Vietnam (Vietnamese: Ban Bí thư Trung ương Đảng Cộng sản Việt Nam), replaced by the Politburo Standing of the Central Committee in the period 1996 to 2001, is the highest implementation body of the Communist Party of Vietnam (CPV) between Central Committee meetings. According to Party rules, the Secretariat implements the decisions of the Politburo and the Central Committee.

The members of the Politburo are elected (and given a ranking) by the Central Committee in the immediate aftermath of a National Party Congress. The current Secretariat, the 13th, was elected by the Central Committee in the aftermath of the 13th National Congress and consists of 12 members. The first-ranked member is Tô Lâm, the General Secretary of the Central Committee.

The five pillars (Vietnamese: bộ ngũ, pronounced [tɨ˧˦ t͡ɕu˧˨ʔ]; or ngũ trụ), previously the four pillars (tứ trụ), is an informal term for the five most important party-state leaders in the Communist Party of Vietnam and the Government of Vietnam. In modern usage, the five pillars refer to the General Secretary of the Communist Party of Vietnam, President of Vietnam, Prime Minister of Vietnam, Chairman of the National Assembly of Vietnam, and the Permanent Member of the Secretariat. Together, they are officially designated as the "Key Leaders of the Party and the State" (Vietnamese: Lãnh đạo chủ chốt của Đảng và Nhà nước) and can be considered as the de facto highest state leaders. Similar to China, there does not exist an official order of precedence for political leaders and rather they are inferred in a de facto fashion. However, since the chairmanship of the Communist Party was abolished, the General Secretary has been the highest ranking official in Vietnam. This division of power is formed to prevent dictatorial rule and preserve consensus-based leadership, which is officially called by the Vietnamese Communist Party as "democratic centralism". In 2025, the seat of Permanent Member of the Secretariat of CPV was designated as the fifth "key leader", virtually becoming the fifth pillar of the Vietnamese politics.

Unlike other communist states, the General Secretary of the party (or its predecessor) and the President of the state are largely occupied not by the same person, demonstrating the collective leadership in Vietnam. The only exceptions are: Hồ Chí Minh (1951–69), Trường Chinh (briefly in 1986), Nguyễn Phú Trọng (2018–21), and Tô Lâm (briefly in 2024), and except Hồ Chí Minh, all of those exceptions were practically elected to fulfill their successors' uncompleted terms of party general secretaryship or state presidency. Thus, the Party General Secretaries rarely hold offices that are nominally within the Vietnamese state apparatus and government except their parliament memberships, however is still managed to be the practical highest leader in the politics of Vietnam and is ideologically the highest commander of the People's Army of Vietnam, due to the ex officio occupation of the Secretaryship of the Party Central Military Commission.