Anthony Bro was a Starfleet officer of the 24th century.
In the 2370s, he was among the members of the Science Ops team listed on the dedication plaques of Defiant-class starships. (DS9: "Valiant", dedication plaque; DS9: "The Dogs of War", dedication plaque)
This character was only mentioned in writing.
He was named after Anthony Bro, a Star Trek set designer.