Urlacher is the brother of Chicago Bears great Brian Urlacher. He has also been the mayor of Mettawa, Illinois since 2013.
The unpaid mayor of Mettawa had been charged with conspiracy to engage in illegal gambling.
Authorities said he tracked down gambling debts, while helping run an illegal gambling operation. That indictment could have landed him in federal prison.
"He wasn't at the top of the pyramid here, but he was very much important, it seems, in the operation of the enterprise, as charged in this indictment," ABC7 Legal Analyst Gil Soffer said at the time. "There's a lot of money trading hands. It is, in some ways, an old time gambling operation but using the internet."
Attorney Michael Gillespie said in a statement, "We are very thankful that out of all of the thousands of petitions for pardon submitted to the president that he read and appreciated all of the outstanding qualities and decency that Casey poses and saw fit to grant him a pardon."
He was among 10 people charged with conspiring to illegally conduct a multi-million dollar sports gambling business based in the Chicago suburbs. The nine others accused include a Chicago police officer, Nicholas Stella.
RELATED: Casey Urlacher, brother of Brian Urlacher, among 10 charged in illegal gambling business, federal officials say
But late Tuesday, Trump granted Casey Urlacher a full pardon.
A statement from the White House said in part, "Mr. Urlacher has been committed to public service and has consistently given back to his community."
The statement went on to say that his pardon is supported by his friends, family and members of his community.
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In addition to being mayor Mettawa, which has a population of about 550 people, Casey Urlacher unsuccessfully ran for state senate a few years ago.
WATCH: Political analyst Laura Washington discusses presidential pardons
The vast majority of pardons Trump issued were for low-level offenses.