政府间气候变化专门委员会（英语：Intergovernmental Panel on Climate Change，缩写IPCC；又译政府间气候变化专业委员会、跨政府气候变化委员会等；）是一个附属于联合国之下的跨政府组织，在1988年由世界气象组织、联合国环境署合作成立，专责研究由人类活动所造成的气候变迁。该会会员限于世界气象组织及联合国环境署之会员国。

政府间气候变化专门委员会本身并不进行研究工作，也不会对气候或其相关现象进行监察。其主要工作是发表与运行《联合国气候变化框架公约》有关的专题报告。政府间气候变化专门委员会主要根据成员互相审查对方报告及已发表的科学文献来撰写评核。

The Intergovernmental Panel on Climate Change (IPCC) is a scientific intergovernmental body under the auspices of the United Nations, set up at the request of member governments. It was first established in 1988 by two United Nations organizations, the World Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP), and later endorsed by the United Nations General Assembly through Resolution 43/53. Membership of the IPCC is open to all members of the WMO and UNEP. The IPCC produces reports that support the United Nations Framework Convention on Climate Change (UNFCCC), which is the main international treaty on climate change. The ultimate objective of the UNFCCC is to "stabilize greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic [i.e., human-induced] interference with the climate system". IPCC reports cover "the scientific, technical and socio-economic information relevant to understanding the scientific basis of risk of human-induced climate change, its potential impacts and options for adaptation and mitigation."