Daniela Melchior (European Portuguese: [dɐniˈɛlɐ mɛlʃiˈɔɾ]; born 1 November 1996) is a Portuguese actress. She started her career in 2014 with a recurring role in telenovela Mulheres [pt], followed by the teen drama Massa Fresca [pt] (2016). In 2017, she was cast in a leading role in the award-winning telenovela Ouro Verde. She appeared in other telenovelas, such as A Herdeira (2018), Valor da Vida (2018) and Pecado [pt] (2021). Melchior made her film debut in 2018 with The Black Book. She provided the Portuguese dubbing for Gwen Stacy in Spider-Man: Into the Spider-Verse and was cast in the comedy drama Parque Mayer in the same year. Her performance in the latter earned her a nomination for the Sophia Award Best Actress.

Melchior’s first international casting was as Cleo Cazo in the DCEU film The Suicide Squad (2021), which earned her a nomination for Best Newcomer at the Portuguese Golden Globes. Subsequently, she took on minor and supporting roles in English-language films, including Marlowe (2022), Assassin Club (2023), Guardians of the Galaxy Vol. 3 (2023), Fast X (2023), Road House (2024), and American Sweatshop (2025). In 2024, she joined the cast of Balls Up, and in 2025 of Anaconda and Violent Night 2.

Daniela Melchior dos Reis Lopes Pereira was born on 1 November 1996 in Almada, Portugal.^[1] From a young age, she showed a strong interest in acting, aspiring to become a film star.^[2] She attended a convent school and later did a vocational course in performing arts in high school.^[3][4] During her school years, she participated in local and school theatre productions.^[1][4] At 16, she joined a modelling agency as a way to gain access to the acting industry, appearing in small commercials before eventually landing her first television role.