Raul Rǎzvan Costin, (born January 29, 1985, Romania), is a Romanian footballer who plays for Rapid București. His predominant position is central midfielder but he can also play in a more defensive role and also as a right back. He is best known for his simple distribution and long shots.
Costin is a product of the Naţional Bucureşti youth academy making his first-team debut during the 2006–07 season against CFR Cluj coming on as a substitute in a 1–0 loss. Before his Naţional debut, he has played one season loaned to FC Sibiu during the 2005-06 season. In the 2008 summer, because of Progresul's (former Naţional) disaffiliation, he signed for Dacia Mioveni where he managed 12 goals, in 32 matches, finishing 6th with his team.
On 18 July 2009, he signed a three-year contract with SC Vaslui for an undisclosed fee. He made his first-team debut on 12 August, against Gaz Metan Mediaş coming as a substitute in a 2-1 win and he scored his first goal against Poli Iaşi in the Moldavian Derby, also in a 2-1 win. He helped his team reaching the Romanian Cup final after scoring the first goal, in the 4-0 win against FC Braşov in the semi-finals. On 15 April 2012 he scored an amazing goal against CS Mioveni in a 3-0 victory.