The Miami Open (also known as the Miami Masters and as the Miami Open presented by Itaú for sponsorship reasons) is an annual professional tennis tournament held in Miami Gardens, Florida, United States. It is played on outdoor hardcourts at the Hard Rock Stadium, and is held in late March and early April. The tournament is part of the ATP Masters 1000 events on the ATP Tour and part of the WTA 1000 events on the WTA Tour.

The tournament was held at the Tennis Center at Crandon Park in Key Biscayne, Florida from 1987 through 2018, featuring the top 96 men and women tennis players in the world. It moved to Miami Gardens for 2019. Following the Indian Wells Open, it is the second event of the "Sunshine Double" — a series of two elite, consecutive hard court tournaments in the United States in early spring.

In 2023, the 12-day tournament was attended by over 386,000 attendees, making it one of the largest tennis tournaments outside the four Grand Slam tournaments.

1985–1992; International Players Championships

1993–1999; Miami Open Championships

2000–2008; Miami Masters

2009–current; Miami Open

1985–1992; Lipton International Players Championships