Manuel de Almeida (1580–1646) (sometimes Manoel de Almeida) was a native of Viseu, who entered at an early age into the Society of Jesus, and went out as a missionary to India. He is noted to have travelled to Ethiopia and Eritrea and Lake Tana and built a number of churches and monasteries particularly on the small islands of the lake.In 1622, Almeida was selected by the general of his order as ambassador to the Emperor of Ethiopia, Susenyos.