1970–71 Yorkshire Football League

The 1970–71 Yorkshire Football League was the 45th season in the history of the Yorkshire Football League, a football competition in England. This season the league expanded up to three divisions.

Division One
Division One featured 12 clubs which competed in the previous season, along with two new clubs:
 * Barton Town, transferred from the Midland League
 * Winterton Rangers, joined from the Lincolnshire Football League

Division Two
Division Two featured eight clubs which competed in the previous season, along with six new clubs, relegated from Division One:
 * Hatfield Main
 * Heeley Amateurs
 * Kiveton Park
 * Norton Woodseats
 * Swallownest Miners Welfare
 * Thackley

Division Three
The division was formed by nine clubs relegated from Division Two and six new clubs.
 * Clubs relegated from Division Two:
 * Firth Vickers
 * Guiseley
 * Hall Road Rangers
 * Harrogate Railway Athletic
 * Harrogate Town
 * Leeds Ashley Road
 * Ossett Town
 * Sheffield
 * Stocksbridge Works
 * Plus:
 * Bradford Park Avenue reserves
 * Brook Sports
 * International Harvesters, joined from the Doncaster & District Senior League
 * Leeds & Carnegie College, new club
 * Sheffield Waterworks, joined from the Sheffield Association League
 * St. John's College (York)