Likely a modern short form or variant of Terrell.
Trell is a rare contemporary name, often used as a diminutive of Terrell or Cantrell. While its exact etymology is debated, it is frequently associated with the Germanic roots meaning 'stubborn' or the French 'to draw.' It has gained some visibility in modern American naming through sports and pop culture.
American Olympic sprinter
A character in the Malazan Book of the Fallen series · Malazan Book of the Fallen
US births per 5-year period, 1990–present (SSA data).