Messi's shirt number for Inter Miami is 10. The number has become closely associated with his identity as a playmaker, goalscorer, captain and Argentina international.
Messi joined Inter Miami in 2023 after leaving Paris Saint-Germain. He selected the No. 10 shirt, continuing the number he had worn for Barcelona since the 2008–09 season and for Argentina during much of his international career. At Inter Miami, the shirt quickly became one of the most recognisable jerseys in Major League Soccer.
A common mix-up is Messi's early Barcelona number. He wore No. 30 when he made his senior-team debut, later switched to No. 19, and inherited No. 10 after Ronaldinho left Barcelona. His Inter Miami number is therefore not a reference to his first club shirt, but to the iconic number he established as his own.
The No. 10 also connects Messi with Argentina legends such as Diego Maradona, who famously wore it before him. At Miami, Messi has worn it while captaining the club and helping deliver its first major trophy in the 2023 Leagues Cup.