Chris Sarginson from Staffordshire.
Sarginson was the referee who called off the game just before kick off at Accrington due to torrential rain earlier in the season. He then took charge of the rearranged game which the Millers won 2-1 back in November.
Amongst his previous Rotherham appearances in the middle is the 6-0 win at Lincoln City two years ago.
So far this season his card count stands at 51 yellows and four reds in 23 matches.
Running the lines on Saturday are Mr. J. Magill (Essex) and Mr. A. Sannerude (Suffolk).
The fourth official is Mr. G. Horwood (Bedfordshire).