Jasiel "Papi" Rivero Fernández (born October 31, 1993) is a Cuban professional basketball player for Crvena Zvezda of the Serbian KLS, ABA League and the EuroLeague.

Rivero made his professional debut on January 1, 2016, for Estudiantes Concordia. Rivero played with Boca Juniors for the 2018–19 season, averaging 18.1 points per game (2nd in the league), while shooting 54% from the floor.

On September 9, 2019, Rivero signed with San Pablo Burgos of the Liga ACB. Rivero would play a key part in San Pablo Burgos success in the Basketball Champions League as the club became champions both in the 2019-20 and 2020–21 campaigns.

In 2019-20, he scored 8.3 points and had 4.3 rebounds per game, while shooting 50% from the field. In 2020-21, he scored 12.3 points and had 6.0 rebounds per game, while shooting 57% from the field.

On July 15, 2021, despite interest from clubs such as Panathinaikos, Rivero decided to sign with Valencia Basket of the Liga ACB. He reunited himself with his former head coach Joan Peñarroya.

In 2021-22, he scored 11.1 points and had 4.2 rebounds per game, while shooting 59% from the field. In 2022-23, he scored 10.5 points and had 3.8 rebounds per game, while shooting 59% from the field.

On July 30, 2023, Rivero signed with Israel powerhouse Maccabi Tel Aviv.

Rivero represented Cuba during the 2015 FIBA Americas Championship. He averaged 18.8 points, 6.5 rebounds, and 0.5 assists.