Nuclear energy policy is a national and international policy concerning some or all aspects of nuclear energy, such as mining for nuclear fuel, extraction and processing of nuclear fuel from the ore, generating electricity by nuclear power, enriching and storing spent nuclear fuel and nuclear fuel reprocessing.

Nuclear energy policies often include the regulation of energy use and standards relating to the nuclear fuel cycle. Other measures include efficiency standards, safety regulations, emission standards, fiscal policies, and legislation on energy trading, transport of nuclear waste and contaminated materials, and their storage. Governments might subsidize nuclear energy and arrange international treaties and trade agreements about the import and export of nuclear technology, electricity, nuclear waste, and uranium.

Since nuclear energy and nuclear weapons technologies are closely related, military aspirations can act as a factor in energy policy decisions. The fear of nuclear proliferation influences some international nuclear energy policies.