Renan Santos de Castro (born 8 September 1995) is a Brazilian footballer who plays as a left-back for Água Santa. Career. Born in Rio de Janeiro, Castro began his career with Ituano, making his senior debut in the 2016 Copa Paulista. After leaving the club in 2017, he subsequently played for Guarani de Palhoça, Ipatinga and Marcílio Dias before moving abroad with Portuguese Campeonato de Portugal side Pedras Rubras in 2018. On 3 January 2019, Castro returned to his home country after signing for Goiânia. He was presented at Mirassol on 24 June, before moving to Anapolina the following 13 January. On 17 September 2020, after a short stint at Atibaia, Castro was announced at Joinville. He was a regular starter for the side during his spell, before moving to Remo on 5 April 2022. Castro left Remo on 30 August 2022, before signing for fellow Série C side Amazonas on 24 December. On 20 December 2023, after helping in the club's first-ever promotion to the Série B, he renewed his link for a further year. Castro left Amazonas on 28 December 2024, as his contract was due to expire, and joined Água Santa the following day. Honours. Joinville Amazonas