2023 BNP Paribas Open – Men's singles

Carlos Alcaraz defeated Daniil Medvedev in the final, 6–3, 6–2 to win the men's singles tennis title at the 2023 Indian Wells Masters. He did not drop a set en route to his third Masters 1000 title and eighth ATP Tour title overall. With the win, he regained the world No. 1 singles ranking from Novak Djokovic, who was unable to enter the United States due to being unvaccinated for COVID-19. Alcaraz also ended the 19-match winning streak of Medvedev.

Taylor Fritz was the defending champion, but lost in the quarterfinals to Jannik Sinner.

Rafael Nadal withdrew from the tournament due to a left leg injury. As a result, he dropped out of the top 10 in the ATP rankings for the first time since his top 10 debut in April 2005, ending a record streak of 912 weeks.