João Bosco Soares Mota Amaral (born 15 April 1943) is a Portuguese politician.

He earned a Master's degree in Law from the Faculty of Law of the University of Lisbon and has a Doctorate honoris causa in Economic Sciences from the University of the Azores.

He integrated the Liberal Wing, led by Francisco Sá Carneiro, and was elected a Deputy to the National Assembly in 1969.

He was one of the Founders of the then Popular Democratic Party (PPD) in May 1974, a month after the Carnation Revolution, together with Francisco Sá Carneiro, Francisco Pinto Balsemão, Joaquim Magalhães Mota, Carlos Mota Pinto, Alberto João Jardim, António Barbosa de Melo and António Marques Mendes, being responsible for the Foundation of the branch of Azores, becoming a Deputy to the Constituent Assembly and to the Assembly of the Republic in all legislatures.

He was President of the Assembly of the Republic of Portugal from 10 April 2002 to 16 March 2005.