Trustees President Brian Morris confirmed Roysdon’s resignation.
Fire Chief Steve Bishop indefinitely suspended Roysdon on Sept. 12 after learning of the racially charged comment, which had been posted to Facebook.
Roysdon, 20, indicated in the post that if he had to choose between saving a dog or a black man from a burning building that he would save the dog first because “one dog is more important than a million” and then used a racial slur.
A disciplinary hearing before the township board of trustees, on a charge of conduct unbecoming a township employee, had been scheduled for Sept. 27.
MORE: Dayton NAACP president calls for Franklin Twp. firefighter’s resignation
Over the past few days, the presidents of the NAACP branches in Dayton and in Middletown have called for Roysdon’s termination.