Association of Scientific Workers
（重定向自AScW）
The Association of Scientific Workers (AScW) was a trade union in the UK. It was founded as the National Union of Scientific Workers in 1918, changing its name to the British Association of Scientific Workers in 1927.
The union largely represented laboratory and technical workers in universities, the National Health Service and in chemical and metal manufacturing. It was the union for scientists with a conscience, and could name half-a-dozen Nobel Prize winners amongst its membership. The former Prime Minister of the United Kingdom Margaret Thatcher was also a member.