The British American Security Information Council (BASIC) is a non-partisan think tank based in London. BASIC takes an inclusive approach to promote nuclear disarmament and non-proliferation by working with politicians, civil society, and other people who share this vision, as well as with those who might oppose it.

BASIC currently has projects related to the UK Trident nuclear weapons debate, non-proliferation in the Middle East, and reframing the nuclear weapons debate. BASIC is also linked with the UK all-party parliamentary group on Global Security and Non-Proliferation. BASIC published the final report of the Trident Commission in July 2014, an independent and cross-party commission, co-chaired by Lord Browne of Ladyton, Sir Malcolm Rifkind, and Sir Menzies Campbell, examining the complexity of issues and options facing the UK government in the decision on its nuclear deterrent and its non-proliferation policy. The report recommended the continuation of the British nuclear program,^[1] conditional upon a number of actions needed to mitigate the negative impacts.

BASIC has charitable status in the United Kingdom.^[2]

• Federation of American Scientists
• Treaty on the Non-Proliferation of Nuclear Weapons
• Comprehensive Nuclear-Test-Ban Treaty