Angela Margaret Mason[2] CBE[3] (born 9 August 1944) is a British civil servant and activist, and a former director of the UK-based lesbian, gay, bisexual and transgender lobbying organisation Stonewall.

She is a former Chair of the Fawcett Society, a UK women's rights campaigning organisation and a Labour Party councillor in Camden.

She was one of the Stoke Newington Eight, who in 1972 were charged with planting or sending bombs which aimed to maim or kill government Ministers, their families and Conservative Party officials.

Controversially she used her position as a senior civil servant to oppose one measure of legislative equality for gay people – protections against discrimination in the delivery of public and commercial services – in 2005 and 2006.

[3] Since 2007, she has been an advisor to IDeA, a government quango which provides guidelines and regulations for all local authorities in England on equality issues.