BAD IDEA
If the referee scores a goal, is it considered an own goal?
The referee can't score goals, so no own goals here—try not to confuse officials with players.
In football, a referee is strictly neutral and not allowed to score or interfere in active play that results in a goal. If the referee somehow touches the ball in a way that leads to a goal, it is not scored as the referee's goal nor an own goal. The laws of the game consider the referee part of the field and do not credit any goals to them. So, no, a referee can't score an own goal or any goal at all—if that happens, the game stops to fix it.