1936 U.S. National Championships (tennis)

1936 U.S. National Championships
DateSeptember 3–12
Edition56th
CategoryGrand Slam (ITF)
SurfaceGrass / outdoor
LocationForest Hills, Queens
New York City, New York
VenueWest Side Tennis Club
Champions
Men's singles
Fred Perry
Women's singles
Alice Marble
Men's doubles
Don Budge / Gene Mako
Women's doubles
Marjorie Gladman Van Ryn / Carolin Babcock
Mixed doubles
Alice Marble / Gene Mako

The 1936 U.S. National Championships (now known as the US Open) was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, New York. The tournament ran from September 3 until September 12. It was the 56th staging of the U.S. National Championships and the fourth Grand Slam tennis event of the year.

Fred Perry's victory would remain as the last Grand Slam tournament won by a British man until Andy Murray won the US Open in 2012, 76 years apart.