First flight over Mount Everest, the British Houston-Mount Everest Flight Expedition, led by the Marquis of Clydesdale and funded by Lucy, Lady Houston.

Mount Everest (known locally as Sagarmatha in Nepal and Qomolangma in Tibet, is Earth's highest mountain above sea level. It lies in the Mahalangur Himal sub-range of the Himalayas and marks part of the China–Nepal border at its summit. Its height was most recently measured in 2020 by Chinese and Nepali authorities as 8,848.86 m.

The first flight over Mount Everest was undertaken in April 1933 by two Westland aircraft. They were piloted by Douglas Douglas-Hamilton and David McIntyre, with Stewart Blacker and Sidney Bonnett in the observer seats. The expedition was financed by Lucy, Lady Houston and led by Peregrine Fellowes.

Air Commodore Douglas Douglas-Hamilton, 14th Duke of Hamilton and 11th Duke of Brandon, was a Scottish aristocrat, politician and aviator. He was the first man to fly over Mount Everest.

Dame Fanny Lucy Houston, Lady Houston, was a British philanthropist, fascist sympathizer, political activist and suffragist.

April 3 is the 93rd day of the year in the Gregorian calendar; 272 days remain until the end of the year.