Margaret Elisabeth Jull Costa (born 2 May 1949) is a British translator of Portuguese- and Spanish-language fiction and poetry, including the works of Nobel Prize winner José Saramago, Eça de Queiroz, Fernando Pessoa, Paulo Coelho, Bernardo Atxaga, Carmen Martín Gaite, Javier Marías, and José Régio. She has won the Oxford-Weidenfeld Translation Prize more times than any other translator.

Zoë Perry works primarily with the translation, scouting and promotion of contemporary Brazilian literary fiction and creative non-fiction. She has translated works by several award-winning Portuguese-language authors including Veronica Stigger, Emilio Fraia, Ana Paula Maia, Clara Drummond, Juliana Leite, Vanessa Barbara, Rodrigo de Souza Leão, Carol Bensimon, and Lourenço Mutarelli. Her translations have appeared in The New Yorker, Astra, n+1, The Paris Review, Granta, Words Without Borders and the White Review, among others. Zoë was selected for a residency at the Banff International Translation Centre for her translation of Emilio Fraia’s Sevastopol, published by New Directions (US) and Lolli Editions (UK). In 2015 she was the first translator-in-residence at the FLIP international literary festival in Paraty, Brazil, and was awarded a PEN/Heim grant for her translation of Opisanie świata by Veronica Stigger, whose work she has been translating for over ten years.