List of male singles tennis players

This is a list of top international male singles tennis players, both past and present.

It includes players who have met one or more of the following criteria in singles:

• Officially ranked among the top 25 players by the Association of Tennis Professionals (since 1973)
• Ranked among the top 10 by an expert (e.g. A. Wallis Myers) before 1973
• Reached the quarterfinals of a Grand Slam tournament
• Reached the finals of year-end championships
• Won a medal at the Olympic Games

Players who have won at least one Grand Slam singles title or have been ranked world no. 1 in singles are in bold. Players who are still active on the tour are in italics.