Attorneys for Davis had argued that the fees and costs sought by the attorneys were excessive, but U.S. District Judge David L. Bunning disagreed and said Davis must pay since the men prevailed in their lawsuit, the Lexington Herald-Leader reported.
Attorneys for Davis were expected to appeal the ruling.
Davis drew international attention when she was briefly jailed in 2015 over her refusal, which she based on her belief that marriage should only be between a man and a woman.
Davis was released only after her staff issued the licenses on her behalf but removed her name from the form. Kentucky’s state legislature later enacted a law removing the names of all county clerks from state marriage licenses.