This is a list of records in the State of Origin series for New South Wales.
The largest home attendances for NSW in State of Origin are: This is a list of records for New South Wales dating back to 1908 and includes traditional Interstate matches plus State of Origin records combined.
Statistics from the Super League Tri-series are not included.
There were no Interstate matches played between 1916–1918 and 1942–1944 due to the World Wars.