Martin Firrell is a British public artist whose works challenge unjust power systems of all kinds, including patriarchal power, the oppression of women and non-heterosexuals, and the heteronormative status quo. He uses language to engage directly with the public, provoking dialogue about more equitable social organisation. The artist’s reported aim is ‘to make the world more humane’.

His work has been summarised as ‘art as debate’.