John Legere (born June 4, 1958) is an American businessman, former chief executive officer (CEO) and president of T-Mobile US.

[1] He served as chief executive for AT&T Asia from April 1994 to November 1997, and also spent time as head of AT&T Global Strategy and Business Development.

[1][5] His leadership at Global Crossing was controversial, which included large executive bonuses and filing for bankruptcy.

[5] In November 2019, Legere announced via his Twitter account he would be stepping down as the CEO for T-Mobile US on April 30, 2020, when his current contract expires.

[10] Legere was a nationally competitive runner in college and post-college and still competes in events with fellow employees.

[5] In May 2016 in support of competitive running, he purchased ad space on Nick Symmonds' shoulder for T-Mobile.