Nicolás Almagro Sánchez rolle (born August 21, 1985 in Murcia, Spain) is a Spanish tennis player known for his flair, talent and inconsistency. He plays right-handed and uses a single-handed backhand. His favorite surface is clay. As of early 2008, Almagro is the second-youngest of the many Spanish players in the ATP Top 100 (after Rafael Nadal).

Almagro had been a highly rated junior for many years, and finally realised his potential in 2005. He played in the main draw of 3 out of 4 slams, and recorded his first victory over a top 10 player when he defeated Marat Safin 6-4 6-3 in Rome. Since then he has cemented his position within the top 50, but his results have remained somewhat inconsistent. His ATP career record against Top 10 opponents is currently 6-12, with previous victories coming against No. 4 Marat Safin at 2005 AMS Rome, No. 9 Guillermo Coria at 2006 Barcelona, No. 6 Nikolay Davydenko at 2006 AMS Rome, No. 7 Tommy Robredo at 2007 AMS Hamburg and No. 8 David Nalbandian in 2008 in Alcapulco.