Tennis at the 2015 Pan American Games – Men's singles

The men's singles tennis event of the 2015 Pan American Games was held from July 10–15 at the Canadian Tennis Centre in Toronto, Canada.

Seeds
• # (champion, gold medalist)

• # (quarterfinals)

• # (semifinals)

• # (semifinals, bronze medalist)

• # (second round)

• # (third round)

• # (second round)

• # (final, silver medalist)

• # (quarterfinals)

• # (third round)

• # (second round)

• # (third round)

• # (third round)

• # (third round)

• # (third round)

• # (second round)