Bernat Guiu Vilanova (born 20 September 2000) is a Spanish professional footballer who plays as a forward for Italian club Virtus Entella.
Born in Falset, Guiu started his career in Gimnàstic de Tarragona youth system, and farm team Pobla de Mafumet, on Tercera División. He made his debut for Tarragona and Segunda División B on 2 February 2020 against Ebro. On 4 July 2021, he left the club.
On 29 July 2021, he joined Italian Serie C club Pergolettese.
On 22 July 2024, Guiu moved to Virtus Entella, also in Serie C.