Albert Montanes was born in Sant Carles de la Ràpita.
Turning professional in 1999, he entered the ATP top 100 for the first time in 2001. His best ranking was 22nd in August 2010. In his career he won the singles tournaments in Estoril twice, in Amersfoort, Bucharest, Stuttgart and Nice.
He first entered the top 100 in 2001. He achieved a career-high singles ranking of world No. 22 in 2010 and has won six singles titles and two doubles titles.
He holds the record for most first-round exits at Grand Slam events; 35 reached at 2016 Wimbledon, beating Kenneth Carlsen's long standing record of 30 first-round exits.
His career ended at the 2017 Barcelona Open. He was awarded a wild card to participate in the event and reached the second round, where he lost to fellow countryman Feliciano López 6–2, 6–2.
Montanes is one of the very few players to win a title after saving match points in two different matches. He did it during his title run in Estoril 2009 in his quarter-finals and the final.