The El Ferdan Railway Bridge is a swing bridge that spans the western shipping lane of the Suez Canal near Ismailia, Egypt. It is the longest swing bridge in the world, with a span of 1,100 feet (340 m).

The first El Ferdan Railway Bridge over the Suez Canal was completed in April 1918 for the Sinai Military Railway. It was considered a hindrance to shipping so after the First World War it was removed. A steel swing bridge was built in 1942 (during the Second World War), but this was damaged by a steamship and removed in 1947. A double swing bridge was completed in 1954 but the 1956 Anglo-Franco-Israeli war with Egypt severed rail traffic across the canal for a third time. A replacement bridge was completed in 1963 which was destroyed in 1967 in the Six-Day War by the Egyptian engineering General Ahmed Hamdy.

In July 1996, a consortium led by German Krupp was awarded a $US70 million contract to design and build the bridge, raised to $80 million to increase the main span from 320 to 340 m (1,050 to 1,120 ft). The current bridge was constructed in 2001.
The parallel New Suez Canal was excavated in 2014/2015 a short distance to the east but without a bridge spanning it. Without a second bridge, the railway across El Ferdan bridge is a dead end.

However, the final decision was made in 2017 to keep the existing bridge at its current location, and rather build a new double-track railway bridge (based on the current El Ferdan bridge design) across the new canal. This means that the old bridge would be converted from a single-track railway to a double-track railway.