Joan Peiró i Belis (sometimes Juan Peiró: 18 February 1887 – 24 July 1942) was a Catalan anarchist activist, writer, editor of the anarchist newspaper Solidaridad Obrera,[1] two-time General Secretary of the Confederación Nacional del Trabajo (National Confederation of Labour, CNT) and Minister of Industry[2] of the Spanish government during the Spanish Civil War.

[3][4] Contrary to most anarchists' principles, in 1930, during the reign of Alfonso XIII of Spain, Peiró signed the "Manifesto of the Catalan Intelligentsia", which called for the establishment of a republic.

On 4 November 1936 Peiró, and three other members of the CNT leadership, were appointed to ministerial positions in the Spanish government by Largo Caballero.

The celebration took place at the cemetery in Mataró where Peiró's body lies, and was attended by his daughter Guillermina Peiró, the secretary of communication of the Confederación General del Trabajo (General Confederation of Labour, CGT), Jordí Martí, as well as the Mayor of Mataró, Manuel Mas.

[9] Peiró's son Josep, like his father, went on to be a leader of the CNT in exile, after having fought in the Civil War as part of the Ascaso Column.