Lucas Morelatto da Cruz (born 25 May 1994) is a Brazilian professional footballer who plays as a midfielder for Super League club Persijap Jepara.
Morelatto started his career with São Paulo state side Paulista before joining Palmeiras in 2013. After a season with Palmeiras' 'B' team, and time spent on loan with Boa Esporte, Morelatto joined Portuguese side Estoril, and was immediately loaned to LigaPro side Olhanense. After one season with the Leões de Olhão, Morelatto was loaned to third division side C.D. Mafra. On 19 March 2017, he scored a hat-trick in Mafra's 14 to 1 win against Naval 1ú de Maio. In March 2023, Morelatto joined Chinese Super League club Nantong Zhiyun.