Lukáš Dlouhý (born April 9, 1983 in Písek) is a professional Czech tennis player on the ATP Tour.

At the 2006 French Open, he reached the third round of the men's singles event and the semifinals of the men's doubles tournament with his countryman Pavel Vízner. In 2007, they reached the 2007 French Open final, losing to Mark Knowles and Daniel Nestor, and the 2007 U.S. Open final, losing to Simon Aspelin and Julian Knowle. In 2008, Dlouhý partnered with Leander Paes and won 2009 French Open - Men's Doubles.

To prevent confusion and double counting, information in this table is updated only after a tournament or the player's participation in the tournament has concluded. This table is current through the 2008 U.S. Open.