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

A doubles specialist, Dlouhý reached a career-high ranking of World No.

Dlouhý has been part of two long-term doubles partnerships, first with countryman and coach Pavel Vízner and actively with Leander Paes.

He has reached numerous grand slam finals with each.

He was the last coach of Barbora Strýcová before she ended her career.