Guilherme de Abreu Sampaio Samaia (born 2 October 1996 in São Paulo) is a Brazilian former racing driver.

[1] Samaia began his racing career in karting in 2012, competing the Florida Winter Tour - Rotax Junior championship.

The championship was won by Oliver Askew and had Kyle Kirkwood and Juan Manuel Correa also competing.

[4] Samaia made his début in the Euroformula Open Championship in 2017 with Carlin at the fifth round in Silverstone where he finished 14th.

Teammate, fellow compatriot and 2020 Formula 2 competitor Felipe Drugovich won the championship with 405 points.

[7] On 17 February 2020, Campos announced that Samaia would race for them after a successful post season test in Abu Dhabi in 2019.

Despite his performance, he made an appearance for Charouz Racing System at the post-season test in Bahrain and was soon confirmed to be partnering David Beckmann at the Czech team for the 2021 season.