Party chief of the Communist Party of China

Party Committee Secretary
Traditional Chinese	黨委書記
Simplified Chinese	党委书记
Transcriptions Standard Mandarin Hanyu Pinyin Dǎngwěi shūji
Abbreviation
Traditional Chinese	書記
Simplified Chinese	书记
Transcriptions Standard Mandarin Hanyu Pinyin Shūji

Transcriptions
Standard Mandarin
Hanyu Pinyin	Dǎngwěi shūji

Transcriptions
Standard Mandarin
Hanyu Pinyin	Shūji

In modern Chinese politics, a Party Committee Secretary (Chinese: 党委书记), commonly translated as Party Secretary, party chief, or party boss, is the leader of the Communist Party of China organization in a province, city, or other administrative region. In most cases, it is the de facto highest political office of its area of jurisdiction.

The term can also be used for the leadership position of Communist Party organizations in state-owned enterprises, universities, hospitals, or other institutions of the state.

In post-Cultural Revolution Chinese political theory, the Communist Party is responsible for the formulation of policies and the government is responsible for its day-to-day execution. At every level of jurisdiction, a government leader serves alongside the party secretary. For example, in the case of a province, the provincial Party Secretary is the de facto highest office, but the government is headed by a government leader called a "Governor" (Chinese: 省长). The Governor is usually the second-highest-ranking official in the party's Provincial Committee, and holds the concurrent title of "Deputy Party Committee Secretary" (Chinese: 省委副书记). A similar comparison can be made for municipal Party Secretaries and Mayors.

There have been rare instances where both Party Secretary and Governor (or Mayor) positions were held by the same person, though this is not the common practice since the end of the Cultural Revolution. The Party Secretary is usually assisted by numerous Deputy Party Secretaries.

Until the 1980s, the leading position of a local party organization was called the First Secretary, its deputy the "Second Secretary". The local party organizations each had its own Secretariat with numerous secretaries.

Beginning at the provincial level, China's party-government dual administrative system arranges a hierarchy by which the party chief is in charge of determining the direction of policy as well as personnel changes, and the corresponding government leader is responsible for implementing party policy and arranging the annual budget, as well as other everyday government matters and ceremonial tasks. The list of party chief levels is as follows:

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