Bosh's No. 1 will be raised to the rafters at AmericanAirlines Arena on March 26, 2019, when the Heat host the Orlando Magic.
The 35-year-old was part of the Heat's Big Three era along with LeBron James and Dwyane Wade. During that time, from 2010 to 2014, Miami reached four consecutive NBA Finals and secured back-to-back championships in 2012 and 2013.
Bosh is the fifth-highest scorer in franchise history (6,914 points), and he's seventh in both blocks (332) and rebounds (2,816).
The 11-time All-Star hasn't played since the 2015-16 season because of life-threatening blood clots. In June 2017, the NBA ruled that Bosh has a career-ending illness.
Bosh said this past summer that he's still looking to make a comeback, but he'd rule it out "if it doesn't happen by February."