Joan Boscà i Almogàver (Catalan pronunciation: [ʒuˈam busˈka j əlmuˈɣaβə], Spanish: Juan Boscán Almogávar; c. 1490 – 21 September 1542), was a Spanish poet who incorporated hendecasyllable verses into Spanish.Boscà's and his close friend Garcilaso de la Vega are seen as very influential in the poetry of the Spanish Renaissance. 

Boscà's poems were published after his death by his widow around 1543 (Garcilaso died in 1536 and Boscà was given the task of editing some of his works before his own death on September 21, 1542). The collection proved popular: between 1543 and 1597, twenty-one editions were printed throughout Europe. While the collection was supposed to focus mainly on his poetry, Boscà was soon overshadowed by his friend Garcilaso. In contrast to Garcilaso, who explored several genres and themes in the new Italian style, Boscà wrote mostly about love. He has been compared to Fray Luis de León, a poet and professor of the 16th century, who also enjoyed the process of translating and writing poetry.